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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

MICHIGAN

( 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
123 Internal-Combustion Engines 114 124 134 204 214 790
280 Land Vehicles 130 138 166 165 157 756
296 Land Vehicles: Bodies and Tops 84 124 160 177 147 692
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 101 123 126 106 109 565
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 121 121 108 97 100 547
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 55 68 79 143 136 481
297 Chairs and Seats 94 89 91 68 66 408
074 Machine Element or Mechanism 75 96 74 72 65 382
073 Measuring and Testing 77 48 64 76 103 368
340 Communications: Electrical 63 62 68 72 82 347
029 Metal Working 62 65 61 76 71 335
052 Static Structures (e.g., Buildings) 62 56 66 83 67 334
428 Stock Material or Miscellaneous Articles 66 62 55 63 81 327
532 Organic Compounds (includes Classes 532-570) 60 56 49 57 71 293
060 Power Plants 44 41 32 70 76 263
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 56 42 38 50 40 226
359 Optics: Systems (Including Communication) and Elements 24 39 47 61 48 219
439 Electrical Connectors 38 43 48 46 44 219
435 Chemistry: Molecular Biology and Microbiology 46 42 56 43 31 218
248 Supports (e.g., for holding articles, etc.) 61 42 41 31 39 214
137 Fluid Handling 38 41 43 43 44 209
180 Motor Vehicles 34 31 45 37 60 207
362 Illumination 36 40 43 46 35 200
192 Clutches and Power-Stop Control 33 56 34 34 32 189
318 Electricity: Motive Power Systems 30 32 31 23 45 161
475 Planetary Gear Transmission Systems or Components 26 38 37 26 31 158
219 Electric Heating 28 17 38 42 32 157
427 Coating Processes 27 34 29 28 32 150
188 Brakes 18 36 13 44 33 144
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 38 29 25 23 23 138
062 Refrigeration 25 23 21 29 36 134
285 Pipe Joints or Couplings 33 33 13 21 30 130
072 Metal Deforming 24 32 24 27 22 129
224 Package and Article Carriers 37 26 23 24 16 126
128 Surgery (includes Class 600) 28 28 25 17 26 124
324 Electricity: Measuring and Testing 33 10 13 28 40 124
417 Pumps 10 13 33 33 31 120
477 Interrelated Power Delivery Controls, Including Engine Control 17 18 32 24 28 119
015 Brushing, Scrubbing, and General Cleaning 19 25 28 26 17 115
049 Movable or Removable Closures 16 26 34 22 16 114
303 Fluid-Pressure and Analogous Brake Systems 15 17 20 31 26 109
210 Liquid Purification or Separation 17 25 16 26 24 108
604 Surgery (Medicators and Receptors) 31 17 18 13 15 94
174 Electricity: Conductors and Insulators 7 18 20 22 26 93
702 DP: Measuring, Calibrating, or Testing (Data Processing) 15 17 10 20 30 92
606 Surgery (instruments) 13 30 17 15 16 91
292 Closure Fasteners 17 13 29 14 17 90
307 Electrical Transmission or Interconnection Systems 11 26 19 11 23 90
220 Receptacles 17 24 18 19 11 89
473 Games Using Tangible Projectile 17 22 23 12 15 89
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 17 22 23 12 14 88
198 Conveyors: Power-Driven 9 18 25 15 20 87
239 Fluid Sprinkling, Spraying, and Diffusing 15 21 16 18 17 87
200 Electricity: Circuit Makers and Breakers 25 21 11 12 14 83
310 Electrical Generator or Motor Structure 14 21 9 16 23 83
356 Optics: Measuring and Testing 13 22 23 13 10 81
403 Joints and Connections 12 18 18 16 17 81
165 Heat Exchange 16 16 13 22 13 80
250 Radiant Energy 14 9 11 26 20 80
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 23 22 10 12 13 80
312 Supports: Cabinet Structure 17 17 18 12 15 79
206 Special Receptacle or Package 18 22 8 20 9 77
700 DP: Generic Control Systems or Specific Applications (Data Processing) 15 12 15 15 20 77
002 Apparel 11 16 25 14 10 76
361 Electricity: Electrical Systems and Devices 27 12 13 9 13 74
251 Valves and Valve Actuation 11 15 22 15 10 73
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 13 9 13 22 15 72
134 Cleaning and Liquid Contact with Solids 14 22 11 5 19 71
148 Metal Treatment 13 21 14 8 14 70
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 15 15 15 14 11 70
138 Pipes and Tubular Conduits 7 17 19 23 3 69
301 Land Vehicles: Wheels and Axles 13 8 12 17 19 69
164 Metal Founding 17 15 8 15 13 68
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 12 19 16 13 8 68
414 Material or Article Handling 16 12 19 14 4 65
267 Spring Devices 8 8 10 15 21 62
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 8 14 10 15 15 62
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 9 17 7 17 11 61
211 Supports: Racks 11 13 18 11 7 60
004 Baths, Closets, Sinks, and Spittoons 10 8 16 10 14 58
423 Chemistry of Inorganic Compounds 18 14 13 8 5 58
426 Food or Edible Material: Processes, Compositions, and Products 10 11 15 14 8 58
343 Communications: Radio Wave Antennas 4 7 12 18 16 57
024 Buckles, Buttons, Clasps, Etc. 20 9 7 9 11 56
451 Abrading 11 13 13 10 8 55
108 Horizontally Supported Planar Surfaces 10 11 10 8 15 54
242 Winding, Tensioning, or Guiding 16 13 9 7 9 54
252 Compositions 18 5 14 13 4 54
228 Metal Fusion Bonding 10 8 13 12 10 53
293 Vehicle Fenders 5 10 5 16 17 53
222 Dispensing (apparatus and process) 8 8 16 12 8 52
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 9 14 10 6 13 52
454 Ventilation 9 10 15 10 8 52
474 Endless Belt Power Transmission Systems or Components 11 16 3 9 13 52
033 Geometrical Instruments 8 6 7 18 12 51
482 Exercise Devices 15 9 11 9 7 51
294 Handling: Hand and Hoist-Line Implements 9 6 13 9 11 48
382 Image Analysis 16 8 7 11 6 48
016 Miscellaneous Hardware 10 9 9 6 12 46
204 Chemistry: Electrical and Wave Energy 5 4 11 8 18 46
269 Work Holders 6 10 11 5 14 46
277 Seal for a Joint or Juncture 5 12 9 9 11 46
043 Fishing, Trapping, and Vermin Destroying 9 14 10 4 8 45
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 8 6 5 10 16 45
040 Card, Picture, or Sign Exhibiting 8 13 12 5 6 44
118 Coating Apparatus 10 8 6 9 11 44
315 Electric Lamp and Discharge Devices: Systems 8 6 7 10 13 44
320 Electricity: Battery or Capacitor Charging or Discharging 8 5 7 16 7 43
418 Rotary Expansible Chamber Devices 6 6 18 5 8 43
083 Cutting 6 13 10 9 4 42
106 Compositions: Coating or Plastic 11 10 8 6 7 42
092 Expansible Chamber Devices 7 10 6 3 14 40
229 Envelopes, Wrappers, and Paperboard Boxes 15 10 7 7 1 40
385 Optical Waveguides 6 10 4 9 10 39
005 Beds 8 6 7 7 10 38
119 Animal Husbandry 11 7 5 7 8 38
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 9 8 7 9 5 38
384 Bearings 9 9 7 5 7 37
438 Semiconductor Device Manufacturing: Process 5 4 9 12 7 37
349 Liquid Crystal Cells, Elements and Systems 8 13 8 5 2 36
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 6 16 5 4 5 36
707 DP: Database and File Management or Data Structures (Data Processing) 5 6 9 4 11 35
065 Glass Manufacturing 9 9 4 8 4 34
114 Ships 4 5 10 9 5 33
415 Rotary Kinetic Fluid Motors or Pumps 2 3 10 8 10 33
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 9 7 4 6 6 32
433 Dentistry 7 7 8 5 5 32
030 Cutlery 3 6 9 7 6 31
081 Tools 3 12 7 7 2 31
410 Freight Accommodation On Freight Carrier 2 8 11 6 4 31
053 Package Making 8 6 6 4 6 30
070 Locks 6 9 6 4 5 30
084 Music 9 5 4 4 7 29
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 5 6 5 4 9 29
434 Education and Demonstration 8 7 5 5 4 29
455 Telecommunications 4 4 10 9 2 29
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 2 5 11 7 4 29
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 11 5 6 3 4 29
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 2 2 7 10 6 27
713 Support (Electrical Computers and Digital Processing Systems) 4 4 5 5 9 27
236 Automatic Temperature and Humidity Regulation 3 4 3 3 13 26
034 Drying and Gas or Vapor Contact with Solids 6 4 7 4 4 25
181 Acoustics 9 5 7 1 3 25
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 7 2 4 6 6 25
271 Sheet Feeding or Delivering 2 3 5 7 8 25
381 Electrical Audio Signal Processing Systems and Devices 11 1 4 5 4 25
436 Chemistry: Analytical and Immunological Testing 5 4 5 6 5 25
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 2 10 6 3 4 25
710 Input/Output (Electrical Computers and Digital Processing Systems) 8 3 8 4 2 25
124 Mechanical Guns and Projectors 6 7 9 0 2 24
160 Flexible or Portable Closure, Partition, or Panel 5 7 6 4 2 24
215 Bottles and Jars 6 3 7 6 2 24
261 Gas and Liquid Contact Apparatus 5 6 3 1 9 24
273 Amusement Devices: Games 5 3 5 3 8 24
366 Agitating (e.g., of articles and materials) 3 5 10 4 2 24
408 Cutting by Use of Rotating Axially Moving Tool 4 7 4 7 2 24
602 Surgery: Splint, Brace, or Bandage 10 2 7 2 3 24
037 Excavating 0 4 6 7 6 23
099 Foods and Beverages: Apparatus 4 1 6 8 4 23
313 Electric Lamp and Discharge Devices 4 8 7 1 3 23
341 Coded Data Generation or Conversion 7 5 0 5 6 23
351 Optics: Eye Examining, Vision Testing and Correcting 5 9 1 2 6 23
409 Gear Cutting, Milling, or Planing 5 2 6 4 6 23
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 5 5 3 7 2 22
095 Gas Separation: Processes 4 8 2 5 3 22
184 Lubrication 6 1 5 5 5 22
047 Plant Husbandry 5 4 5 2 5 21
116 Signals and Indicators 3 4 2 8 3 20
126 Stoves and Furnaces 5 7 4 1 3 20
223 Apparel Apparatus 1 6 5 3 5 20
348 Television 5 8 2 2 3 20
370 Multiplex Communications 3 3 7 3 4 20
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 6 5 1 4 4 20
132 Toilet 3 7 4 4 1 19
401 Coating Implements with Material Supply 0 7 5 3 4 19
419 Powder Metallurgy Processes 5 6 1 4 3 19
042 Firearms 7 2 1 4 4 18
241 Solid Material Comminution or Disintegration 5 2 4 3 4 18
446 Amusement Devices: Toys 3 3 5 2 5 18
601 Surgery: Kinesitherapy 3 1 2 11 1 18
036 Boots, Shoes, and Leggings 9 4 3 1 0 17
209 Classifying, Separating, and Assorting Solids 6 1 4 3 3 17
407 Cutters, for Shaping 5 3 2 4 3 17
420 Alloys or Metallic Compositions 2 5 1 4 5 17
501 Compositions: Ceramic 6 6 2 0 3 17
055 Gas Separation 7 2 1 4 2 16
096 Gas Separation: Apparatus 1 3 1 6 5 16
104 Railways 4 3 1 3 5 16
136 Batteries: Thermoelectric and Photoelectric 2 8 4 2 0 16
244 Aeronautics 1 2 4 3 6 16
254 Implements or Apparatus for Applying Pushing or Pulling Force 4 3 4 3 2 16
374 Thermal Measuring and Testing 7 1 4 3 1 16
378 X-Ray or Gamma Ray Systems or Devices 5 2 5 1 3 16
082 Turning (e.g., for metal working) 4 6 1 3 1 15
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 1 4 3 3 4 15
372 Coherent Light Generators 4 2 4 3 2 15
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 2 2 2 6 3 15
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 4 4 2 3 2 15
068 Textiles: Fluid Treating Apparatus 6 3 1 3 1 14
182 Fire Escape, Ladder, or Scaffold 4 3 3 3 1 14
405 Hydraulic and Earth Engineering 6 3 2 1 2 14
406 Conveyors: Fluid Current 3 2 1 3 5 14
431 Combustion 4 2 4 2 2 14
440 Marine Propulsion 3 2 3 2 4 14
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 3 0 8 2 1 14
091 Motors: Expansible Chamber Type 4 2 2 3 2 13
100 Presses 4 4 2 1 2 13
216 Etching a Substrate: Processes 1 3 3 3 3 13
266 Metallurgical Apparatus 1 1 6 3 2 13
290 Prime-Mover Dynamo Plants 3 2 0 5 3 13
336 Inductor Devices 1 3 4 0 5 13
363 Electric Power Conversion Systems 0 1 1 6 5 13
375 Pulse or Digital Communications 3 2 1 6 1 13
379 Telephonic Communications 2 4 3 3 1 13
416 Fluid Reaction Surfaces (i.e., Impellers) 2 5 1 3 2 13
717 DP: Software Development, Installation, and Management (Data Processing) 2 4 1 4 2 13
169 Fire Extinguishers 2 1 4 2 3 12
279 Chucks or Sockets 3 5 1 1 2 12
369 Dynamic Information Storage or Retrieval 1 0 3 5 3 12
383 Flexible Bags 5 2 1 2 2 12
607 Surgery: Light, Thermal, and Electrical Application 5 2 0 2 3 12
706 DP: Artificial Intelligence (Data Processing) 5 1 0 3 3 12
714 Error Detection/Correction and Fault Detection/Recovery 3 4 2 2 1 12
323 Electricity: Power Supply or Regulation Systems 5 1 2 2 1 11
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 2 3 4 0 2 11
585 Chemistry of Hydrocarbon Compounds 1 0 1 2 7 11
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 0 4 3 2 10
177 Weighing Scales 1 3 2 2 2 10
249 Static Molds 3 3 2 2 0 10
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 2 2 2 0 4 10
504 Plant Protecting and Regulating Compositions 1 2 3 3 1 10
144 Woodworking 3 1 4 1 0 9
333 Wave Transmission Lines and Networks 1 3 0 1 4 9
105 Railway Rolling Stock 3 0 3 2 0 8
135 Tent, Canopy, Umbrella, or Cane 2 1 1 2 2 8
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 3 2 0 1 2 8
175 Boring or Penetrating the Earth 1 0 4 3 0 8
194 Check-Actuated Control Mechanisms 3 1 2 2 0 8
221 Article Dispensing 2 0 1 4 1 8
256 Fences 4 0 2 1 1 8
283 Printed Matter 1 2 2 2 1 8
330 Amplifiers 0 2 1 0 5 8
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 2 4 1 1 0 8
338 Electrical Resistors 0 4 2 2 0 8
367 Communications, Electrical: Acoustic Wave Systems and Devices 1 3 2 1 1 8
404 Road Structure, Process, or Apparatus 1 3 1 1 2 8
432 Heating 2 3 2 0 1 8
715 DP: Presentation Processing of Document (Data Processing) 1 5 1 1 0 8
056 Harvesters 2 2 1 1 1 7
149 Explosive and Thermic Compositions or Charges 0 2 1 3 1 7
152 Resilient Tires and Wheels 0 2 1 1 3 7
227 Elongated-Member-Driving Apparatus 2 0 3 1 1 7
237 Heating Systems 0 1 2 2 2 7
305 Wheel Substitutes for Land Vehicles 3 0 1 3 0 7
365 Static Information Storage and Retrieval 0 2 3 1 1 7
441 Buoys, Rafts, and Aquatic Devices 0 3 2 0 2 7
450 Foundation Garments 1 1 3 0 2 7
066 Textiles: Knitting 2 3 1 0 0 6
089 Ordnance 1 0 1 2 2 6
101 Printing 1 1 2 1 1 6
122 Liquid Heaters and Vaporizers 0 2 3 0 1 6
131 Tobacco 3 1 2 0 0 6
193 Conveyors, Chutes, Skids, Guides, and Ways 0 1 2 1 2 6
232 Deposit and Collection Receptacles 3 1 0 1 1 6
360 Dynamic Magnetic Information Storage or Retrieval 2 1 0 1 2 6
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 1 1 4 0 6
711 Memory (Electrical Computers and Digital Processing Systems) 0 1 3 1 1 6
044 Fuel and Related Compositions 1 2 1 0 1 5
051 Abrasive Tool Making Process, Material, or Composition 0 1 2 1 1 5
054 Harness (for animals) 2 0 2 0 1 5
157 Wheelwright Machines 0 0 2 2 1 5
162 Paper Making and Fiber Liberation 3 1 1 0 0 5
172 Earth Working 1 0 1 1 2 5
322 Electricity: Single Generator Systems 1 1 1 1 1 5
355 Photocopying 1 2 0 2 0 5
358 Facsimile and Static Presentation Processing 2 0 0 3 0 5
392 Electric Resistance Heating Devices 3 0 1 0 1 5
483 Tool Changing 1 1 2 0 1 5
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 4 1 0 0 0 5
112 Sewing 0 2 1 1 0 4
326 Electronic Digital Logic Circuitry 0 1 1 1 1 4
332 Modulators 0 0 0 2 2 4
368 Horology: Time Measuring Systems or Devices 0 0 2 1 1 4
399 Electrophotography 0 1 1 1 1 4
400 Typewriting Machines 0 0 3 0 1 4
445 Electric Lamp or Space Discharge Component or Device Manufacturing 2 1 0 0 1 4
463 Amusement Devices: Games 1 1 1 0 1 4
476 Friction Gear Transmission Systems or Components 0 0 1 0 3 4
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 1 1 1 1 0 4
708 Arithmetic Processing and Calculating (Electrical Computers) 0 3 0 0 1 4
063 Jewelry 0 0 2 0 1 3
111 Planting 1 1 1 0 0 3
331 Oscillators 0 2 1 0 0 3
337 Electricity: Electrothermally or Thermally Actuated Switches 1 1 1 0 0 3
347 Incremental Printing of Symbolic Information 1 0 1 1 0 3
353 Optics: Image Projectors 1 0 0 0 2 3
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 1 0 1 0 1 3
472 Amusement Devices 0 3 0 0 0 3
492 Roll or Roller 1 0 1 0 1 3
014 Bridges 1 0 0 1 0 2
076 Metal Tools and Implements, Making 0 0 0 2 0 2
086 Ammunition and Explosive-Charge Making 0 0 1 1 0 2
102 Ammunition and Explosives 1 0 1 0 0 2
110 Furnaces 0 0 1 1 0 2
171 Unearthing Plants or Buried Objects 0 0 2 0 0 2
190 Trunks and Hand-Carried Luggage 0 0 0 0 2 2
208 Mineral Oils: Processes and Products 0 1 1 0 0 2
213 Railway Draft Appliances 1 0 0 0 1 2
225 Severing by Tearing or Breaking 0 1 1 0 0 2
226 Advancing Material of Indeterminate Length 0 0 0 1 1 2
270 Sheet-Material Associating 2 0 0 0 0 2
380 Cryptography 0 2 0 0 0 2
388 Electricity: Motor Control Systems 1 0 1 0 0 2
396 Photography 1 1 0 0 0 2
412 Bookbinding: Process and Apparatus 0 1 1 0 0 2
452 Butchering 0 0 1 1 0 2
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 0 0 0 1 1 2
588 Hazardous or Toxic Waste Destruction or Containment 1 0 0 1 0 2
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 0 1 1 0 0 2
001 ** Classification Undetermined ** 0 1 0 0 0 1
007 Compound Hand Tools 0 0 0 1 0 1
028 Textiles: Manufacturing 0 0 1 0 0 1
038 Textiles: Ironing or Smoothing 0 0 0 0 1 1
048 Gas: Heating and Illuminating 0 0 1 0 0 1
117 Single-Crystal, Oriented-Crystal, and Epitaxy Growth Processes; Non-Coating Apparatus Therefor 0 0 0 1 0 1
125 Stone Working 0 1 0 0 0 1
139 Textiles: Weaving 0 0 0 1 0 1
173 Tool Driving or Impacting 0 0 1 0 0 1
185 Motors: Spring, Weight, or Animal Powered 0 0 1 0 0 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 1 0 0 1
191 Electricity: Transmission To Vehicles 0 0 0 1 0 1
202 Distillation: Apparatus 0 0 0 0 1 1
203 Distillation: Processes, Separatory 1 0 0 0 0 1
212 Traversing Hoists 0 0 1 0 0 1
238 Railways: Surface Track 1 0 0 0 0 1
281 Books, Strips, and Leaves 0 1 0 0 0 1
298 Land Vehicles: Dumping 0 0 1 0 0 1
299 Mining or In Situ Disintegration of Hard Material 0 1 0 0 0 1
352 Optics: Motion Pictures 0 1 0 0 0 1
386 Television Signal Processing for Dynamic Recording or Reproducing 0 0 0 0 1 1
449 Bee Culture (propagating, raising, caring for bees) 0 0 0 0 1 1
453 Coin Handling 0 0 1 0 0 1
507 Earth Boring, Well Treating, and Oil Field Chemistry 0 0 0 1 0 1
725 Interactive Video Distribution Systems 0 0 1 0 0 1
ALL ALL CLASSES 3506 3680 3725 3853 3862 18626


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