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U.S. PATENT AND TRADEMARK OFFICE
Office of Electronic Information Products
Patent Technology Monitoring Division (PTMD)

Patenting By Geographic Region (State and Country),
Breakout By Technology Class

Count of 1998 - 2002 Utility Patent Grants,
By Calendar Year of Grant

- Explanation of Data -

Rank Ordered Listing of Technology Classes Receiving 1 or More Utility Patents During the Period
Originating From

MASSACHUSETTS

( patent origin is determined by the residence of the first-named inventor )
( technology class is determined by the primary classification assigned to the patent- see 'Explanation of Data' )

The following table displays technology classes and counts of associated patents, as distributed by the year of patent grant
Class Class Title 1998 1999 2000 2001 2002 Total
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 290 315 253 321 304 1483
435 Chemistry: Molecular Biology and Microbiology 275 259 232 273 255 1294
128 Surgery (includes Class 600) 134 125 119 105 110 593
606 Surgery (instruments) 91 104 92 89 83 459
532 Organic Compounds (includes Classes 532-570) 82 66 76 76 92 392
370 Multiplex Communications 41 64 64 98 76 343
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 44 73 62 75 77 331
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 63 61 68 64 67 323
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 50 33 72 74 82 311
604 Surgery (Medicators and Receptors) 52 64 52 48 49 265
382 Image Analysis 44 46 51 76 43 260
707 DP: Database and File Management or Data Structures (Data Processing) 44 53 42 48 70 257
359 Optics: Systems (Including Communication) and Elements 42 44 42 44 80 252
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 63 53 47 40 49 252
428 Stock Material or Miscellaneous Articles 52 68 54 35 42 251
711 Memory (Electrical Computers and Digital Processing Systems) 30 34 50 65 59 238
073 Measuring and Testing 53 48 40 40 45 226
473 Games Using Tangible Projectile 40 31 37 60 51 219
250 Radiant Energy 48 41 33 47 48 217
210 Liquid Purification or Separation 35 44 46 40 26 191
714 Error Detection/Correction and Fault Detection/Recovery 43 44 34 33 33 187
361 Electricity: Electrical Systems and Devices 32 32 32 32 43 171
710 Input/Output (Electrical Computers and Digital Processing Systems) 30 36 37 38 23 164
356 Optics: Measuring and Testing 37 27 36 24 30 154
324 Electricity: Measuring and Testing 32 31 22 34 33 152
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 23 35 29 40 25 152
378 X-Ray or Gamma Ray Systems or Devices 26 26 27 34 33 146
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 25 30 39 23 23 140
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 23 28 30 28 25 134
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 31 31 21 23 27 133
385 Optical Waveguides 17 18 17 22 45 119
340 Communications: Electrical 25 18 19 29 26 117
439 Electrical Connectors 22 15 40 21 18 116
375 Pulse or Digital Communications 25 19 30 18 22 114
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 11 18 24 31 27 111
427 Coating Processes 20 20 25 22 20 107
436 Chemistry: Analytical and Immunological Testing 23 24 19 14 23 103
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 11 17 28 27 18 101
713 Support (Electrical Computers and Digital Processing Systems) 16 17 14 35 18 100
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 15 28 24 16 16 99
204 Chemistry: Electrical and Wave Energy 15 21 19 23 18 96
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 22 18 18 17 21 96
029 Metal Working 18 18 13 22 24 95
219 Electric Heating 7 18 22 18 29 94
379 Telephonic Communications 23 16 17 14 24 94
348 Television 18 21 14 19 21 93
315 Electric Lamp and Discharge Devices: Systems 14 9 33 22 13 91
438 Semiconductor Device Manufacturing: Process 9 17 20 18 27 91
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 21 17 23 11 17 89
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 14 15 17 22 17 85
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 16 22 16 20 11 85
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 12 15 18 16 23 84
702 DP: Measuring, Calibrating, or Testing (Data Processing) 12 14 13 16 29 84
607 Surgery: Light, Thermal, and Electrical Application 15 12 10 23 23 83
717 DP: Software Development, Installation, and Management (Data Processing) 7 17 20 22 15 81
248 Supports (e.g., for holding articles, etc.) 16 17 22 11 14 80
062 Refrigeration 19 18 8 15 17 77
310 Electrical Generator or Motor Structure 15 13 14 20 15 77
206 Special Receptacle or Package 22 16 18 14 6 76
280 Land Vehicles 12 17 14 11 19 73
002 Apparel 7 20 17 15 13 72
341 Coded Data Generation or Conversion 16 10 14 21 10 71
360 Dynamic Magnetic Information Storage or Retrieval 13 13 20 13 12 71
700 DP: Generic Control Systems or Specific Applications (Data Processing) 10 15 13 19 14 71
313 Electric Lamp and Discharge Devices 20 9 12 16 13 70
381 Electrical Audio Signal Processing Systems and Devices 19 20 11 7 11 68
137 Fluid Handling 9 14 12 19 11 65
174 Electricity: Conductors and Insulators 7 7 10 19 22 65
362 Illumination 3 19 15 13 14 64
052 Static Structures (e.g., Buildings) 10 13 9 19 12 63
708 Arithmetic Processing and Calculating (Electrical Computers) 14 10 15 10 10 59
363 Electric Power Conversion Systems 13 12 10 11 12 58
482 Exercise Devices 15 11 13 9 9 57
030 Cutlery 11 12 9 13 9 54
358 Facsimile and Static Presentation Processing 13 11 14 7 8 53
455 Telecommunications 10 11 10 6 16 53
101 Printing 16 7 7 10 12 52
372 Coherent Light Generators 8 3 13 13 15 52
036 Boots, Shoes, and Leggings 7 12 13 9 10 51
118 Coating Apparatus 8 9 14 13 7 51
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 7 12 7 12 13 51
060 Power Plants 12 7 9 12 10 50
024 Buckles, Buttons, Clasps, Etc. 9 5 17 7 11 49
396 Photography 15 14 10 7 3 49
343 Communications: Radio Wave Antennas 5 8 10 14 10 47
433 Dentistry 11 7 9 10 10 47
434 Education and Demonstration 7 10 15 6 9 47
715 DP: Presentation Processing of Document (Data Processing) 8 9 7 16 7 47
222 Dispensing (apparatus and process) 7 7 12 13 7 46
106 Compositions: Coating or Plastic 12 9 8 7 9 45
347 Incremental Printing of Symbolic Information 9 12 11 7 6 45
351 Optics: Eye Examining, Vision Testing and Correcting 10 14 8 10 3 45
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 8 13 7 11 6 45
423 Chemistry of Inorganic Compounds 6 12 11 9 6 44
084 Music 14 8 5 8 8 43
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 8 7 10 10 8 43
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 11 11 8 7 6 43
015 Brushing, Scrubbing, and General Cleaning 10 10 10 3 8 41
330 Amplifiers 11 4 6 5 15 41
426 Food or Edible Material: Processes, Compositions, and Products 10 10 6 9 6 41
318 Electricity: Motive Power Systems 10 9 9 4 5 37
451 Abrading 4 7 10 6 10 37
505 Superconductor Technology: Apparatus, Material, Process 4 10 8 7 8 37
042 Firearms 3 2 2 8 21 36
252 Compositions 10 6 6 7 7 36
414 Material or Article Handling 4 4 13 6 8 35
224 Package and Article Carriers 12 8 4 2 8 34
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 6 8 6 8 6 34
333 Wave Transmission Lines and Networks 2 6 5 10 11 34
367 Communications, Electrical: Acoustic Wave Systems and Devices 7 5 5 8 9 34
416 Fluid Reaction Surfaces (i.e., Impellers) 3 5 4 14 8 34
132 Toilet 9 8 9 4 3 33
242 Winding, Tensioning, or Guiding 8 7 4 7 7 33
114 Ships 9 8 8 3 4 32
297 Chairs and Seats 7 7 8 5 5 32
380 Cryptography 10 1 6 10 5 32
273 Amusement Devices: Games 6 9 7 4 5 31
415 Rotary Kinetic Fluid Motors or Pumps 4 5 3 6 13 31
070 Locks 9 4 3 7 7 30
072 Metal Deforming 5 8 4 11 2 30
431 Combustion 2 9 11 7 1 30
123 Internal-Combustion Engines 2 7 4 9 7 29
165 Heat Exchange 4 7 4 7 7 29
374 Thermal Measuring and Testing 8 2 5 6 8 29
417 Pumps 4 8 6 7 4 29
004 Baths, Closets, Sinks, and Spittoons 8 3 2 6 9 28
033 Geometrical Instruments 6 5 3 8 6 28
119 Animal Husbandry 5 5 8 3 7 28
164 Metal Founding 8 8 4 4 4 28
323 Electricity: Power Supply or Regulation Systems 6 9 6 5 2 28
446 Amusement Devices: Toys 4 6 3 7 8 28
706 DP: Artificial Intelligence (Data Processing) 12 2 3 5 6 28
051 Abrasive Tool Making Process, Material, or Composition 6 6 6 6 3 27
200 Electricity: Circuit Makers and Breakers 10 8 3 2 4 27
228 Metal Fusion Bonding 2 5 5 7 8 27
366 Agitating (e.g., of articles and materials) 12 5 3 6 1 27
083 Cutting 8 4 7 7 0 26
220 Receptacles 4 6 5 8 3 26
277 Seal for a Joint or Juncture 4 2 4 8 8 26
294 Handling: Hand and Hoist-Line Implements 8 7 6 2 3 26
320 Electricity: Battery or Capacitor Charging or Discharging 0 2 10 6 8 26
369 Dynamic Information Storage or Retrieval 8 3 5 5 5 26
392 Electric Resistance Heating Devices 5 3 6 7 5 26
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 3 8 4 2 9 26
244 Aeronautics 5 5 2 10 3 25
307 Electrical Transmission or Interconnection Systems 6 8 3 4 4 25
040 Card, Picture, or Sign Exhibiting 3 4 9 2 6 24
134 Cleaning and Liquid Contact with Solids 5 5 3 5 6 24
365 Static Information Storage and Retrieval 7 7 3 2 5 24
401 Coating Implements with Material Supply 0 7 2 9 6 24
005 Beds 5 7 4 5 1 22
181 Acoustics 4 6 6 2 4 22
216 Etching a Substrate: Processes 5 5 5 3 4 22
602 Surgery: Splint, Brace, or Bandage 6 4 4 2 6 22
074 Machine Element or Mechanism 7 5 4 5 0 21
148 Metal Treatment 3 5 4 2 7 21
227 Elongated-Member-Driving Apparatus 3 2 2 6 8 21
326 Electronic Digital Logic Circuitry 6 1 5 3 6 21
405 Hydraulic and Earth Engineering 8 5 5 1 2 21
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 5 1 1 7 7 21
136 Batteries: Thermoelectric and Photoelectric 3 5 4 6 2 20
285 Pipe Joints or Couplings 5 0 3 3 9 20
034 Drying and Gas or Vapor Contact with Solids 2 4 4 4 5 19
055 Gas Separation 4 2 4 4 5 19
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 2 4 9 3 1 19
160 Flexible or Portable Closure, Partition, or Panel 2 3 5 4 5 19
237 Heating Systems 3 5 2 7 2 19
296 Land Vehicles: Bodies and Tops 5 1 3 7 3 19
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 4 2 2 5 5 18
209 Classifying, Separating, and Assorting Solids 6 4 6 1 1 18
239 Fluid Sprinkling, Spraying, and Diffusing 3 6 4 3 2 18
043 Fishing, Trapping, and Vermin Destroying 3 6 5 1 2 17
211 Supports: Racks 1 6 4 4 2 17
221 Article Dispensing 7 3 3 2 2 17
386 Television Signal Processing for Dynamic Recording or Reproducing 3 5 6 0 3 17
501 Compositions: Ceramic 3 4 4 4 2 17
182 Fire Escape, Ladder, or Scaffold 5 4 3 2 2 16
384 Bearings 0 2 5 3 6 16
403 Joints and Connections 4 1 3 5 3 16
494 Imperforate Bowl: Centrifugal Separators 7 0 5 2 2 16
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 3 4 4 3 1 15
169 Fire Extinguishers 4 1 4 3 3 15
251 Valves and Valve Actuation 0 3 5 4 3 15
283 Printed Matter 2 2 2 4 5 15
349 Liquid Crystal Cells, Elements and Systems 3 4 2 3 3 15
290 Prime-Mover Dynamo Plants 5 0 3 2 4 14
312 Supports: Cabinet Structure 3 2 1 5 3 14
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 4 5 0 2 3 14
463 Amusement Devices: Games 2 1 3 4 4 14
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 3 2 3 2 4 14
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 3 3 2 5 0 13
198 Conveyors: Power-Driven 2 1 6 1 3 13
331 Oscillators 2 2 2 5 2 13
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 3 5 1 1 3 13
440 Marine Propulsion 0 1 8 4 0 13
725 Interactive Video Distribution Systems 1 4 3 2 3 13
037 Excavating 3 2 2 2 3 12
099 Foods and Beverages: Apparatus 5 3 1 2 1 12
138 Pipes and Tubular Conduits 0 2 6 3 1 12
180 Motor Vehicles 1 4 3 2 2 12
188 Brakes 4 0 2 3 3 12
241 Solid Material Comminution or Disintegration 3 4 1 3 1 12
601 Surgery: Kinesitherapy 3 1 4 3 1 12
053 Package Making 4 1 3 1 2 11
066 Textiles: Knitting 1 1 5 4 0 11
095 Gas Separation: Processes 1 3 4 0 3 11
126 Stoves and Furnaces 0 3 4 3 1 11
162 Paper Making and Fiber Liberation 3 2 3 2 1 11
254 Implements or Apparatus for Applying Pushing or Pulling Force 2 3 1 3 2 11
261 Gas and Liquid Contact Apparatus 2 0 6 3 0 11
336 Inductor Devices 2 1 3 1 4 11
355 Photocopying 3 2 2 2 2 11
400 Typewriting Machines 3 5 2 1 0 11
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 2 2 4 3 0 11
081 Tools 1 2 3 3 1 10
096 Gas Separation: Apparatus 1 3 1 3 2 10
108 Horizontally Supported Planar Surfaces 2 1 2 3 2 10
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 2 4 3 0 1 10
229 Envelopes, Wrappers, and Paperboard Boxes 2 1 2 3 2 10
271 Sheet Feeding or Delivering 4 2 0 1 3 10
281 Books, Strips, and Leaves 4 3 2 1 0 10
049 Movable or Removable Closures 0 3 4 1 1 9
122 Liquid Heaters and Vaporizers 3 3 1 0 2 9
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 3 4 0 1 1 9
368 Horology: Time Measuring Systems or Devices 2 0 2 2 3 9
409 Gear Cutting, Milling, or Planing 1 3 1 1 3 9
432 Heating 3 2 0 2 2 9
454 Ventilation 1 2 2 3 1 9
475 Planetary Gear Transmission Systems or Components 2 5 0 0 2 9
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 2 2 2 2 1 9
065 Glass Manufacturing 1 5 0 1 1 8
089 Ordnance 3 1 1 1 2 8
135 Tent, Canopy, Umbrella, or Cane 1 2 2 2 1 8
215 Bottles and Jars 2 1 1 1 3 8
337 Electricity: Electrothermally or Thermally Actuated Switches 1 2 0 1 4 8
353 Optics: Image Projectors 3 3 0 1 1 8
419 Powder Metallurgy Processes 1 4 2 1 0 8
016 Miscellaneous Hardware 1 1 0 4 1 7
047 Plant Husbandry 2 1 1 3 0 7
110 Furnaces 2 0 1 2 2 7
112 Sewing 3 3 1 0 0 7
172 Earth Working 1 2 2 0 2 7
376 Induced Nuclear Reactions: Processes, Systems, and Elements 1 3 0 3 0 7
445 Electric Lamp or Space Discharge Component or Device Manufacturing 2 1 2 1 1 7
476 Friction Gear Transmission Systems or Components 1 2 2 2 0 7
028 Textiles: Manufacturing 0 2 1 0 3 6
044 Fuel and Related Compositions 1 2 1 1 1 6
116 Signals and Indicators 0 1 1 0 4 6
125 Stone Working 1 1 2 1 1 6
131 Tobacco 1 3 2 0 0 6
223 Apparel Apparatus 0 4 0 2 0 6
226 Advancing Material of Indeterminate Length 3 1 1 1 0 6
399 Electrophotography 3 0 1 0 2 6
407 Cutters, for Shaping 2 1 2 0 1 6
408 Cutting by Use of Rotating Axially Moving Tool 1 5 0 0 0 6
504 Plant Protecting and Regulating Compositions 2 0 2 2 0 6
007 Compound Hand Tools 1 1 0 1 2 5
087 Textiles: Braiding, Netting, and Lace Making 1 3 1 0 0 5
102 Ammunition and Explosives 1 1 1 0 2 5
104 Railways 0 1 1 2 1 5
127 Sugar, Starch, and Carbohydrates 2 1 0 1 1 5
144 Woodworking 2 1 2 0 0 5
236 Automatic Temperature and Humidity Regulation 2 1 1 1 0 5
267 Spring Devices 1 2 1 1 0 5
292 Closure Fasteners 1 1 0 2 1 5
346 Recorders 3 1 1 0 0 5
418 Rotary Expansible Chamber Devices 3 1 1 0 0 5
474 Endless Belt Power Transmission Systems or Components 3 0 1 0 1 5
001 ** Classification Undetermined ** 2 1 1 0 0 4
063 Jewelry 2 0 0 0 2 4
071 Chemistry: Fertilizers 0 2 0 0 2 4
140 Wireworking 0 2 0 1 1 4
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 0 0 1 2 1 4
177 Weighing Scales 0 0 1 3 0 4
178 Telegraphy 0 1 0 0 3 4
322 Electricity: Single Generator Systems 0 1 0 2 1 4
492 Roll or Roller 0 0 0 2 2 4
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 2 1 1 0 0 4
585 Chemistry of Hydrocarbon Compounds 1 0 0 2 1 4
057 Textiles: Spinning, Twisting, and Twining 0 0 1 1 1 3
059 Chain, Staple, and Horseshoe Making 3 0 0 0 0 3
068 Textiles: Fluid Treating Apparatus 0 0 0 3 0 3
076 Metal Tools and Implements, Making 2 1 0 0 0 3
100 Presses 1 0 1 1 0 3
139 Textiles: Weaving 1 0 2 0 0 3
175 Boring or Penetrating the Earth 0 2 1 0 0 3
190 Trunks and Hand-Carried Luggage 0 2 1 0 0 3
192 Clutches and Power-Stop Control 1 0 0 1 1 3
202 Distillation: Apparatus 0 2 0 1 0 3
293 Vehicle Fenders 2 0 0 0 1 3
332 Modulators 0 1 1 0 1 3
338 Electrical Resistors 0 1 0 1 1 3
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 0 2 0 1 3
383 Flexible Bags 0 1 1 1 0 3
404 Road Structure, Process, or Apparatus 1 0 1 0 1 3
441 Buoys, Rafts, and Aquatic Devices 1 0 1 0 1 3
452 Butchering 2 0 1 0 0 3
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 1 0 0 1 1 3
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 0 0 1 1 1 3
012 Boot and Shoe Making 0 0 0 2 0 2
014 Bridges 1 1 0 0 0 2
048 Gas: Heating and Illuminating 0 1 1 0 0 2
056 Harvesters 0 1 1 0 0 2
082 Turning (e.g., for metal working) 0 1 0 1 0 2
091 Motors: Expansible Chamber Type 1 0 0 1 0 2
124 Mechanical Guns and Projectors 0 1 0 1 0 2
191 Electricity: Transmission To Vehicles 1 0 0 0 1 2
194 Check-Actuated Control Mechanisms 0 1 0 1 0 2
203 Distillation: Processes, Separatory 1 0 0 0 1 2
212 Traversing Hoists 0 0 2 0 0 2
246 Railway Switches and Signals 0 0 0 1 1 2
256 Fences 1 0 1 0 0 2
269 Work Holders 0 1 0 0 1 2
301 Land Vehicles: Wheels and Axles 0 0 0 0 2 2
472 Amusement Devices 0 1 0 1 0 2
477 Interrelated Power Delivery Controls, Including Engine Control 0 0 1 1 0 2
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 1 1 0 0 2
588 Hazardous or Toxic Waste Destruction or Containment 0 1 0 0 1 2
023 Chemistry: Physical Processes 0 1 0 0 0 1
038 Textiles: Ironing or Smoothing 0 0 0 1 0 1
054 Harness (for animals) 1 0 0 0 0 1
086 Ammunition and Explosive-Charge Making 0 1 0 0 0 1
092 Expansible Chamber Devices 0 1 0 0 0 1
109 Safes, Bank Protection, or a Related Device 0 0 0 1 0 1
111 Planting 0 1 0 0 0 1
150 Purses, Wallets, and Protective Covers 0 0 0 0 1 1
152 Resilient Tires and Wheels 1 0 0 0 0 1
193 Conveyors, Chutes, Skids, Guides, and Ways 0 0 0 0 1 1
208 Mineral Oils: Processes and Products 0 0 0 0 1 1
218 High-Voltage Switches with Arc Preventing or Extinguishing Devices 0 0 1 0 0 1
225 Severing by Tearing or Breaking 0 0 0 0 1 1
232 Deposit and Collection Receptacles 0 0 1 0 0 1
249 Static Molds 1 0 0 0 0 1
266 Metallurgical Apparatus 0 1 0 0 0 1
289 Knots and Knot Tying 0 0 1 0 0 1
295 Railway Wheels and Axles 0 0 0 1 0 1
298 Land Vehicles: Dumping 0 1 0 0 0 1
300 Brush, Broom, and Mop Making 0 0 0 0 1 1
305 Wheel Substitutes for Land Vehicles 0 0 1 0 0 1
329 Demodulators 0 0 1 0 0 1
352 Optics: Motion Pictures 0 1 0 0 0 1
373 Industrial Electric Heating Furnaces 0 1 0 0 0 1
388 Electricity: Motor Control Systems 1 0 0 0 0 1
406 Conveyors: Fluid Current 0 1 0 0 0 1
410 Freight Accommodation On Freight Carrier 1 0 0 0 0 1
412 Bookbinding: Process and Apparatus 0 0 1 0 0 1
420 Alloys or Metallic Compositions 0 1 0 0 0 1
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 0 0 1 0 1
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 0 1 0 0 1
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 0 0 1 0 0 1
ALL ALL CLASSES 3413 3521 3459 3667 3608 17668


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