Class   420	ALLOYS OR METALLIC COMPOSITIONS
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RADIOACTIVE

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. (1 indent ) Actinide base; singly or in combination

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.. (2 indent ) Uranium base

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. (1 indent ) Iron base

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. (1 indent ) Magnesium base

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. (1 indent ) Nickel or cobalt base

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. (1 indent ) Aluminum base

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FERROUS (I.E., IRON BASE)

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. (1 indent ) 1.7 percent or more carbon containing

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.. (2 indent ) Six percent or more total group IV, V or VI transition metals containing

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... (3 indent ) Eight percent or more chromium containing

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.... (4 indent ) Molybdenum, tungsten or vanadium containing

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.. (2 indent ) 2.7 percent or more carbon equivalent containing (i.e., cast iron)

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... (3 indent ) Boron containing

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... (3 indent ) Chromium containing

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.... (4 indent ) Nickel containing

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....• (5 indent ) Molybdenum containing

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... (3 indent ) Processes of adding magnesium

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.... (4 indent ) Adding magnesium as a liquid, vapor or as a solid agent entrained by gas (e.g., fluidized)

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.... (4 indent ) Flowing molten iron alloy onto solid magnesium containing agent, or adding solid magnesium containing agent to molten stream of iron alloy

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.... (4 indent ) Mechanically plunging magnesium containing agent below surface of iron alloy melt

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.... (4 indent ) Separate addition of plural agents, at least one containing magnesium

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.... (4 indent ) Magnesium containing agent is coated, impregnated, or compacted (e.g., briquetted, coated particles)

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.... (4 indent ) Magnesium present in agent only as a compound with a nonmetal

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.... (4 indent ) In agent also containing silicon, rare earth, or alkaline earth metal

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... (3 indent ) Copper containing

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... (3 indent ) Nickel or molybdenum containing

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... (3 indent ) Over .1 percent aluminum containing

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... (3 indent ) Processes

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.... (4 indent ) Adding rare earth or alkaline earth metal

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.... (4 indent ) Adding sulfur, selenium or tellurium

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.... (4 indent ) Adding vanadium, titanium, niobium, or zirconium

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.... (4 indent ) Adding silicon

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. (1 indent ) Nine percent or more chromium containing

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.. (2 indent ) Noble metal containing

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.. (2 indent ) Cobalt containing

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... (3 indent ) Molybdenum or tungsten containing

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.... (4 indent ) Nickel containing

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.... (4 indent ) Copper containing

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.. (2 indent ) Rare earth containing

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.. (2 indent ) Lead, bismuth, antimony, calcium, selenium or tellurium containing

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.. (2 indent ) Over 0.05 percent sulfur, over 0.04 percent phosphorus or sulfur or phosphorus added in any amount to promote machinability

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.. (2 indent ) Eight percent or more nickel containing

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... (3 indent ) Over 2 percent manganese containing

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.... (4 indent ) Copper containing

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.... (4 indent ) Molybdenum or tungsten containing

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....• (5 indent ) Group IV or V transition metal containing

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.... (4 indent ) Group IV or V transition metal containing

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... (3 indent ) Copper containing

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... (3 indent ) Over 1.5 percent silicon containing

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.... (4 indent ) Group IV or V transition metal containing

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... (3 indent ) Molybdenum containing

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.... (4 indent ) Group IV or V transition metal containing

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... (3 indent ) Group IV or V transition metal containing

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... (3 indent ) Over 0.1 percent carbon containing

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.. (2 indent ) Eight percent or more total nickel plus manganese containing

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... (3 indent ) Molybdenum or tungsten containing

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... (3 indent ) Copper containing

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... (3 indent ) Over 0.20 percent nitrogen containing

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.. (2 indent ) Copper containing

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... (3 indent ) Molybdenum or tungsten containing

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.. (2 indent ) Over 0.1 percent aluminum containing

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... (3 indent ) Molybdenum or tungsten conaining

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.. (2 indent ) Boron containing

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.. (2 indent ) 0.25 percent or more nitrogen containing

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... (3 indent ) Group IV or V transition metal containing

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.. (2 indent ) Molybdenum or tungsten containing

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... (3 indent ) Titanium, zirconium or hafnium containing

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... (3 indent ) Vanadium, niobium or tantalum containing

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.. (2 indent ) Group IV or V transition metal containing

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.. (2 indent ) Processes

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. (1 indent ) Eight percent or more manganese containing

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.. (2 indent ) Nickel containing

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.. (2 indent ) Chromium containing

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.. (2 indent ) Titanium containing

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.. (2 indent ) Copper containing

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. (1 indent ) Four percent or more aluminum containing

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.. (2 indent ) Over 2 percent silicon containing

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.. (2 indent ) Chromium containing

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.. (2 indent ) Nickel or cobalt containing

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.. (2 indent ) Zirconium, vanadium or titanium containing

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. (1 indent ) Noble metal containing

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. (1 indent ) Rare earth metal containing

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. (1 indent ) Lead, bismuth, selenium, tellurium or calcium containing

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.. (2 indent ) Processes

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... (3 indent ) Adding lead

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. (1 indent ) Over 0.05 percent sulfur, over 0.04 percent phosphorus or sulfur or phosphorus added in any amount to promote machinability

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.. (2 indent ) Processes of making or treating alloy containing over 0.04 percent phosphorus

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. (1 indent ) Copper containing

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.. (2 indent ) Chromium containing

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... (3 indent ) Nickel containing

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.. (2 indent ) Nickel containing

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.. (2 indent ) Vanadium, zirconium, titanium or molybdenum containing

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. (1 indent ) Over 10 percent nickel containing

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.. (2 indent ) Cobalt containing

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.. (2 indent ) Molybdenum containing

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.. (2 indent ) Chromium containing

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.. (2 indent ) Over 1 percent silicon containing

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. (1 indent ) One percent or more carbon containing, but less than 1.7 percent

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.. (2 indent ) Chromium containing

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... (3 indent ) Molybdenum containing

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.... (4 indent ) Cobalt containing

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. (1 indent ) Over 0.1 percent aluminum containing, but less than 4 percent

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. (1 indent ) Chromium containing, but less than 9 percent

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.. (2 indent ) Molybdenum containing

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... (3 indent ) Boron or beryllium containing

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... (3 indent ) Cobalt containing

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... (3 indent ) Nickel containing

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.... (4 indent ) Vanadium, titanium or zirconium containing

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... (3 indent ) Titanium, zirconium or niobium containing

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... (3 indent ) Vanadium containing

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.. (2 indent ) Nickel containing

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... (3 indent ) Tungsten containing

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.. (2 indent ) Tungsten containing

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.. (2 indent ) Processes

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... (3 indent ) Including reducing a chromium compound

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. (1 indent ) Two percent or more silicon containing

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.. (2 indent ) Titanium, molybdenum, tungsten or vanadium containing

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. (1 indent ) Nickel containing, but 10 percent or less

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. (1 indent ) 1.5 percent or more manganese containing, but less than 8 percent

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. (1 indent ) Boron containing

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. (1 indent ) Tungsten containing

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. (1 indent ) Molybdneum containing

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.. (2 indent ) Vanadium, tantalum or titanium containing

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. (1 indent ) Zirconium containing

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. (1 indent ) Titanium containing

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. (1 indent ) Vanadium, tantalum or niobium containing

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. (1 indent ) Nitrogen containinig

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. (1 indent ) Processes

400

ALKALI METAL BASE

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BERYLLIUM BASE

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MAGNESIUM BASE

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. (1 indent ) Silver containing

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.. (2 indent ) Manganese containing

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. (1 indent ) Lanthanide containing

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.. (2 indent ) Zirconium containing

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. (1 indent ) Aluminum containing

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.. (2 indent ) Zinc containing

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... (3 indent ) Manganese containing

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.. (2 indent ) Manganese containing

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. (1 indent ) Zinc containing

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.. (2 indent ) Manganese containing

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. (1 indent ) Manganese containing

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. (1 indent ) Zirconium containing

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ALKALINE EARTH METAL BASE

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RARE EARTH METAL BASE SINGLY OR IN COMBINATION

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TITANIUM BASE

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. (1 indent ) Aluminum containing

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.. (2 indent ) Tin containing

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.. (2 indent ) Vanadium containing

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. (1 indent ) Chromium or molybdenum containing

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ZIRCONIUM OR HAFNIUM BASE

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. (1 indent ) Copper containing

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VANADIUM BASE

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NIOBIUM BASE

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. (1 indent ) Titanium, zirconium, or hafnium containing

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TANTALUM BASE

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CHROMIUM BASE

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MOLYBDENUM BASE

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TUNGSTEN BASE

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. (1 indent ) Carbon, boron or nitrogen containing

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. (1 indent ) Rhenium or noble metal containing

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RHENIUM BASE

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MANGANESE BASE

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COBALT BASE

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. (1 indent ) Chromium containing

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.. (2 indent ) Aluminum containing

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... (3 indent ) Titanium containing

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.. (2 indent ) Titanium containing

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.. (2 indent ) Iron containing

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NICKEL BASE

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. (1 indent ) Chromium containing

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.. (2 indent ) Rare earth, magnesium or alkaline earth metal containing

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.. (2 indent ) Noble metal containing

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.. (2 indent ) Aluminum containing

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... (3 indent ) Titanium containing

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.... (4 indent ) Tantalum, niobium, vanadium, or hafnium containing

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....• (5 indent ) Molybdenum or tungsten containing

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.... (4 indent ) Zirconium or boron containing

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.... (4 indent ) Molybdenum or tungsten containing

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.. (2 indent ) Titanium containing

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.. (2 indent ) Iron or manganese containing

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... (3 indent ) Molybdenum or tungsten containing

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.... (4 indent ) Cobalt containing

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. (1 indent ) Rare earth containing

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. (1 indent ) Noble metal containing

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. (1 indent ) Copper containing

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.. (2 indent ) Iron containing

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. (1 indent ) Iron or manganese containing

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. (1 indent ) Aluminum containing

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OSMIUM OR IRIDIUM BASE

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RUTHENIUM OR RHODIUM BASE

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PALLADIUM BASE

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. (1 indent ) Copper containing

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. (1 indent ) Platinum containing

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PLATINUM BASE

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. (1 indent ) Rhodium containing

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. (1 indent ) Nickel containing

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COPPER BASE

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. (1 indent ) Tin containing

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.. (2 indent ) Aluminum containing

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.. (2 indent ) Phosphorus containing

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.. (2 indent ) Iron, manganese or nickel containing

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.. (2 indent ) Lead containing

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... (3 indent ) Zinc containing

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.. (2 indent ) Zinc containing

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. (1 indent ) Zinc containing

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.. (2 indent ) Aluminum containing

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... (3 indent ) Nickel containing

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... (3 indent ) Manganese containing

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.. (2 indent ) Nickel containing

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.. (2 indent ) Manganese containing

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.. (2 indent ) Noble metal containing

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.. (2 indent ) Refractory metal containing

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. (1 indent ) Nickel containing

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.. (2 indent ) Aluminum containing

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.. (2 indent ) Iron or manganese containing

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.. (2 indent ) Refractory metal containing

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. (1 indent ) Aluminum, gallium, indium, or thallium containing

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. (1 indent ) Silicon containing

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. (1 indent ) Lead containing

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. (1 indent ) Titanium, zirconium or hafnium containing

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. (1 indent ) Manganese containing

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. (1 indent ) Beryllium, magnesium, or alkaline earth metal containing

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. (1 indent ) Other refractory metal containing

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. (1 indent ) Iron or cobalt containing

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. (1 indent ) Noble metal containing

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. (1 indent ) Cadmium, or mercury containing

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. (1 indent ) Phosphorus, arsenic, antimony, or bismuth containing

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. (1 indent ) Sulfur, selenium, or tellurium containing

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SILVER BASE

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. (1 indent ) Copper containing

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.. (2 indent ) Other noble metal containing

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.. (2 indent ) Zinc, or cadmium containing

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. (1 indent ) Other noble metal containing

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. (1 indent ) Zinc, or cadmium containing

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GOLD BASE

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. (1 indent ) Palladium containing

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.. (2 indent ) Platinum containing

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. (1 indent ) Platinum containing

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. (1 indent ) Silver containing

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. (1 indent ) Iron, cobalt, or nickel containing

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ZINC BASE

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. (1 indent ) Aluminum containing

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.. (2 indent ) Copper containing

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... (3 indent ) Mangesium containing

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... (3 indent ) Tin containing

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... (3 indent ) Manganese, iron, cobalt, or nickel containing

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.. (2 indent ) Magnesium containing

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.. (2 indent ) Manganese, iron, cobalt, or nickel containing

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. (1 indent ) Copper containing

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.. (2 indent ) Manganese, iron, cobalt, or nickel containing

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. (1 indent ) Cadmium containing

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. (1 indent ) Tin containing

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CADMIUM BASE

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MERCURY BASE

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. (1 indent ) Silver containing

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ALUMINUM BASE

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. (1 indent ) Copper containing

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.. (2 indent ) Tin containing

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.. (2 indent ) Zinc containing

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... (3 indent ) Magnesium containing

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.. (2 indent ) Magnesium containing

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... (3 indent ) Silicon containing

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.... (4 indent ) Titanium, zirconium, hafnium, vanadium, niobium, or tantalum containing

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.... (4 indent ) Cadmium, lead or bismuth containing

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.. (2 indent ) Silicon containing

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.. (2 indent ) Iron, cobalt, or nickel containing

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.. (2 indent ) Silver containing

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. (1 indent ) Zinc containing

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.. (2 indent ) Magnesium containing

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. (1 indent ) Magnesium containing

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.. (2 indent ) Titanium, zirconium, hafnium, vanadium, niobium, or tantalum containing

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... (3 indent ) Silicon containing

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... (3 indent ) Chromium containing

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.. (2 indent ) Silicon containing

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.. (2 indent ) Iron, cobalt, or nickel containing

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. (1 indent ) Silicon containing

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.. (2 indent ) Alkali, or alkaline earth metal containing

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. (1 indent ) Iron, cobalt, or nickel containing

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.. (2 indent ) Titanium, zirconium, hafnium, vanadium, noobium or tantalum containing

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. (1 indent ) Titanium, zirconium, hafnium, vanadium, niobium, or tantalum containing

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.. (2 indent ) Manganese containing

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. (1 indent ) Cadmium, lead, or bismuth containing

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GALLIUM, INDIUM, OR THALLIUM BASE

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GERMANIUM BASE

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TIN BASE

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. (1 indent ) Lead containing

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.. (2 indent ) Antimony, or bismuth containing

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. (1 indent ) Copper containing

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.. (2 indent ) Antimony, or bismuth containing

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. (1 indent ) Antimony, or bismuth containing

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LEAD BASE

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. (1 indent ) Alkali, alkaline earth metal or magnesium containing

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.. (2 indent ) Tin containing

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. (1 indent ) Silver containing

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. (1 indent ) Arsenic containing

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.. (2 indent ) Tin containing

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... (3 indent ) Antimony containing

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. (1 indent ) Tin containing

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.. (2 indent ) Antimony containing

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. (1 indent ) Antimony containing

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. (1 indent ) Copper containing

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. (1 indent ) Zinc containing

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. (1 indent ) Cadmium containing

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ANTIMONY BASE

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BISMUTH BASE

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SILICON BASE ALLOY CONTAINING METAL

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ARSENIC BASE OR SELENIUM OR TELLURIUM BASE ALLOY CONTAINING METAL

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CONTAINING OVER 50 PER CENT METAL BUT NO BASE METAL

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. (1 indent ) Iron containing

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.. (2 indent ) Copper containing

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.. (2 indent ) Chromium containing

584.1

... (3 indent ) Nickel containing

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.... (4 indent ) Cobalt containing

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....• (5 indent ) Titanium, or zirconium containing

586.1

.... (4 indent ) Molybdenum containing

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. (1 indent ) Copper containing

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. (1 indent ) Chromium containing

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. (1 indent ) Tin containing

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PROCESSES

591

MISCELLANEOUS

	CROSS-REFERENCE ART COLLECTIONS

900

HYDROGEN STORAGE

901

SUPERCONDUCTIVE

902

SUPERPLASTIC

903

SEMICONDUCTIVE

	FOREIGN ART COLLECTIONS

FOR000

CLASS-RELATED FOREIGN DOCUMENTS

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