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Classification Resources
 
Class   159CONCENTRATING EVAPORATORS
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[List of Pre Grant Publications for class 159 subclass 2.1][List of Patents for class 159 subclass 2.1]2.1 SUPERHEATING AND PRESSURE RELEASE
[List of Pre Grant Publications for class 159 subclass 3][List of Patents for class 159 subclass 3]3 SPRAY TYPE
[List of Pre Grant Publications for class 159 subclass 5][List of Patents for class 159 subclass 5]5 FILM TYPE
[List of Pre Grant Publications for class 159 subclass 16.1][List of Patents for class 159 subclass 16.1]16.1 GASEOUS BLAST OR CURRENT
[List of Pre Grant Publications for class 159 subclass 17.1][List of Patents for class 159 subclass 17.1]17.1 MULTIPLE EFFECTS
 [List of Pre Grant Publications for class 159 subclass 21][List of Patents for class 159 subclass 21]21 COMBINED CLOSED AND OPEN PANS
[List of Pre Grant Publications for class 159 subclass 22][List of Patents for class 159 subclass 22]22 CLOSED EVAPORATING CHAMBERS
[List of Pre Grant Publications for class 159 subclass 32][List of Patents for class 159 subclass 32]32 OPEN PANS
 [List of Pre Grant Publications for class 159 subclass 42][List of Patents for class 159 subclass 42]42 STRAINERS OR SKIMMERS
[List of Pre Grant Publications for class 159 subclass 43.1][List of Patents for class 159 subclass 43.1]43.1 FLUID FEED OR DISCHARGE DEVICES
 [List of Pre Grant Publications for class 159 subclass 45][List of Patents for class 159 subclass 45]45 APPARATUS FOR GRAINING AND SEPARATING CRYSTALS
 [List of Pre Grant Publications for class 159 subclass 46][List of Patents for class 159 subclass 46]46 PRELIMINARY HEATERS AND HEAT ECONOMIZERS
[List of Pre Grant Publications for class 159 subclass 47.1][List of Patents for class 159 subclass 47.1]47.1 PROCESSES
 [List of Pre Grant Publications for class 159 subclass 1.1][List of Patents for class 159 subclass 1.1]1.1 MISCELLANEOUS
 
CROSS-REFERENCE ART COLLECTIONS
 
 [List of Pre Grant Publications for class 159 subclass 900][List of Patents for class 159 subclass 900]900 USING VIBRATORY FORCE
 [List of Pre Grant Publications for class 159 subclass 901][List of Patents for class 159 subclass 901]901 PROMOTING CIRCULATION
[List of Pre Grant Publications for class 159 subclass 902][List of Patents for class 159 subclass 902]902 USING NATURAL HEAT
 [List of Pre Grant Publications for class 159 subclass 905][List of Patents for class 159 subclass 905]905 SEWAGE TREATMENT
 [List of Pre Grant Publications for class 159 subclass 906][List of Patents for class 159 subclass 906]906 WICK
 
FOREIGN ART COLLECTIONS
 
      FOR000          CLASS-RELATED FOREIGN DOCUMENTS
 
DIGESTS
 
 [List of Pre Grant Publications for class 159 subclass DIG1][List of Patents for class 159 subclass DIG1] DIG1 ELECTRIC HEAT
 [List of Pre Grant Publications for class 159 subclass DIG2][List of Patents for class 159 subclass DIG2] DIG2 ENTRAINMENT
 [List of Pre Grant Publications for class 159 subclass DIG3][List of Patents for class 159 subclass DIG3] DIG3 FLUIDIZED BED
 [List of Pre Grant Publications for class 159 subclass DIG4][List of Patents for class 159 subclass DIG4] DIG4 FOAM
 [List of Pre Grant Publications for class 159 subclass DIG5][List of Patents for class 159 subclass DIG5] DIG5 FREEZING
 [List of Pre Grant Publications for class 159 subclass DIG6][List of Patents for class 159 subclass DIG6] DIG6 INFRARED
 [List of Pre Grant Publications for class 159 subclass DIG7][List of Patents for class 159 subclass DIG7] DIG7 MAGNETIC COUPLING
 [List of Pre Grant Publications for class 159 subclass DIG8][List of Patents for class 159 subclass DIG8] DIG8 MULTIEFFECT OR MULTISTAGE
 [List of Pre Grant Publications for class 159 subclass DIG9][List of Patents for class 159 subclass DIG9] DIG9 TWO LIQUIDS DRIED SIMULTANEOUSLY
 [List of Pre Grant Publications for class 159 subclass DIG10][List of Patents for class 159 subclass DIG10] DIG10 ORGANIC
 [List of Pre Grant Publications for class 159 subclass DIG11][List of Patents for class 159 subclass DIG11] DIG11 BIOLOGICALS
 [List of Pre Grant Publications for class 159 subclass DIG12][List of Patents for class 159 subclass DIG12] DIG12 RADIOACTIVE
 [List of Pre Grant Publications for class 159 subclass DIG13][List of Patents for class 159 subclass DIG13] DIG13 SCALE
 [List of Pre Grant Publications for class 159 subclass DIG14][List of Patents for class 159 subclass DIG14] DIG14 SOAP
 [List of Pre Grant Publications for class 159 subclass DIG15][List of Patents for class 159 subclass DIG15] DIG15 SPECIAL MATERIAL
 [List of Pre Grant Publications for class 159 subclass DIG16][List of Patents for class 159 subclass DIG16] DIG16 VACUUM
 [List of Pre Grant Publications for class 159 subclass DIG17][List of Patents for class 159 subclass DIG17] DIG17 TWO LIQUIDS
 [List of Pre Grant Publications for class 159 subclass DIG18][List of Patents for class 159 subclass DIG18] DIG18 ACCUMULATOR
 [List of Pre Grant Publications for class 159 subclass DIG19][List of Patents for class 159 subclass DIG19] DIG19 ACID
 [List of Pre Grant Publications for class 159 subclass DIG20][List of Patents for class 159 subclass DIG20] DIG20 ADDITIVE
 [List of Pre Grant Publications for class 159 subclass DIG21][List of Patents for class 159 subclass DIG21] DIG21 COATING
 [List of Pre Grant Publications for class 159 subclass DIG22][List of Patents for class 159 subclass DIG22] DIG22 CONDENSATE FLASHING
 [List of Pre Grant Publications for class 159 subclass DIG23][List of Patents for class 159 subclass DIG23] DIG23 COOLING
 [List of Pre Grant Publications for class 159 subclass DIG24][List of Patents for class 159 subclass DIG24] DIG24 CRITICAL
 [List of Pre Grant Publications for class 159 subclass DIG25][List of Patents for class 159 subclass DIG25] DIG25 DECANT, PRESS, CENTRIFUGE
 [List of Pre Grant Publications for class 159 subclass DIG26][List of Patents for class 159 subclass DIG26] DIG26 ELECTRIC FIELD
 [List of Pre Grant Publications for class 159 subclass DIG27][List of Patents for class 159 subclass DIG27] DIG27 MICROPORES
 [List of Pre Grant Publications for class 159 subclass DIG28][List of Patents for class 159 subclass DIG28] DIG28 POROUS MEMBER
 [List of Pre Grant Publications for class 159 subclass DIG29][List of Patents for class 159 subclass DIG29] DIG29 PEBBLE BED
 [List of Pre Grant Publications for class 159 subclass DIG30][List of Patents for class 159 subclass DIG30] DIG30 DESUPER HEATING
 [List of Pre Grant Publications for class 159 subclass DIG31][List of Patents for class 159 subclass DIG31] DIG31 DEAERATION
 [List of Pre Grant Publications for class 159 subclass DIG32][List of Patents for class 159 subclass DIG32] DIG32 INDIRECT HEAT EXCHANGE
 [List of Pre Grant Publications for class 159 subclass DIG33][List of Patents for class 159 subclass DIG33] DIG33 TWO LIQUIDS, ONE A HEAT CARRIER
 [List of Pre Grant Publications for class 159 subclass DIG34][List of Patents for class 159 subclass DIG34] DIG34 CAUSTIC
 [List of Pre Grant Publications for class 159 subclass DIG35][List of Patents for class 159 subclass DIG35] DIG35 VIEWPORTS, PEEPSIGHTS, AND SIGHTGLASSES
 [List of Pre Grant Publications for class 159 subclass DIG36][List of Patents for class 159 subclass DIG36] DIG36 RABBLED HEARTH
 [List of Pre Grant Publications for class 159 subclass DIG37][List of Patents for class 159 subclass DIG37] DIG37 PORTED
 [List of Pre Grant Publications for class 159 subclass DIG38][List of Patents for class 159 subclass DIG38] DIG38 SEED
 [List of Pre Grant Publications for class 159 subclass DIG39][List of Patents for class 159 subclass DIG39] DIG39 POWER PLANT
 [List of Pre Grant Publications for class 159 subclass DIG40][List of Patents for class 159 subclass DIG40] DIG40 PUMPS
 [List of Pre Grant Publications for class 159 subclass DIG41][List of Patents for class 159 subclass DIG41] DIG41 REMOVABLE UNITS
 [List of Pre Grant Publications for class 159 subclass DIG42][List of Patents for class 159 subclass DIG42] DIG42 SEALS