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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

MINNESOTA

( 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
607 Surgery: Light, Thermal, and Electrical Application 119 135 146 124 132 656
128 Surgery (includes Class 600) 95 102 146 143 141 627
360 Dynamic Magnetic Information Storage or Retrieval 101 108 92 97 124 522
428 Stock Material or Miscellaneous Articles 106 110 104 92 102 514
604 Surgery (Medicators and Receptors) 95 81 77 75 59 387
424 Drug, Bio-Affecting and Body Treating Compositions (includes Class 514) 64 54 71 78 104 371
520 Synthetic Resins or Natural Rubbers (includes Classes 520-528) 75 91 56 63 81 366
606 Surgery (instruments) 53 52 76 57 54 292
623 Prosthesis (i.e., Artificial Body Members), Parts Thereof, or Aids and Accessories Therefor 39 54 57 71 70 291
426 Food or Edible Material: Processes, Compositions, and Products 25 46 45 40 36 192
710 Input/Output (Electrical Computers and Digital Processing Systems) 27 35 42 40 37 181
711 Memory (Electrical Computers and Digital Processing Systems) 27 33 28 46 46 180
073 Measuring and Testing 34 33 37 31 33 168
156 Adhesive Bonding and Miscellaneous Chemical Manufacture 31 37 22 36 34 160
427 Coating Processes 34 33 28 26 30 151
435 Chemistry: Molecular Biology and Microbiology 30 33 27 26 28 144
359 Optics: Systems (Including Communication) and Elements 28 28 27 24 30 137
800 Multicellular Living Organisms and Unmodified Parts Thereof and Related Processes 18 36 35 34 11 134
430 Radiation Imagery Chemistry: Process, Composition, or Product Thereof 22 24 24 27 35 132
707 DP: Database and File Management or Data Structures (Data Processing) 14 25 32 29 32 132
709 Multiple Computer or Process Coordinating (Electrical Computers and Digital Processing Systems) 13 23 30 33 24 123
345 Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems 21 21 25 26 28 121
324 Electricity: Measuring and Testing 19 24 19 22 36 120
029 Metal Working 24 19 27 26 21 117
532 Organic Compounds (includes Classes 532-570) 26 18 13 25 30 112
264 Plastic and Nonmetallic Article Shaping or Treating: Processes 27 21 24 20 19 111
340 Communications: Electrical 24 19 14 25 29 111
206 Special Receptacle or Package 22 28 21 24 15 110
714 Error Detection/Correction and Fault Detection/Recovery 21 20 28 19 21 109
052 Static Structures (e.g., Buildings) 26 23 23 22 11 105
385 Optical Waveguides 18 18 15 19 34 104
439 Electrical Connectors 13 25 22 18 26 104
361 Electricity: Electrical Systems and Devices 20 18 18 16 28 100
210 Liquid Purification or Separation 21 16 19 21 21 98
280 Land Vehicles 19 15 21 19 24 98
510 Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions 9 11 14 27 32 93
137 Fluid Handling 12 12 21 29 16 90
451 Abrading 14 14 25 18 18 89
015 Brushing, Scrubbing, and General Cleaning 14 35 18 12 9 88
248 Supports (e.g., for holding articles, etc.) 19 20 20 9 15 83
713 Support (Electrical Computers and Digital Processing Systems) 15 22 16 13 13 79
327 Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems 15 18 12 24 9 78
053 Package Making 29 14 18 8 8 77
602 Surgery: Splint, Brace, or Bandage 9 13 17 20 15 74
062 Refrigeration 14 12 14 14 19 73
222 Dispensing (apparatus and process) 13 26 12 10 11 72
219 Electric Heating 13 18 15 12 13 71
370 Multiplex Communications 19 11 12 14 12 68
356 Optics: Measuring and Testing 18 11 14 9 13 65
717 DP: Software Development, Installation, and Management (Data Processing) 7 11 9 22 14 63
055 Gas Separation 15 14 11 10 12 62
239 Fluid Sprinkling, Spraying, and Diffusing 10 16 26 4 6 62
700 DP: Generic Control Systems or Specific Applications (Data Processing) 16 13 10 8 13 60
002 Apparel 15 10 9 14 11 59
326 Electronic Digital Logic Circuitry 9 10 10 16 14 59
429 Chemistry: Electrical Current Producing Apparatus, Product, and Process 8 11 16 14 10 59
414 Material or Article Handling 12 8 18 9 11 58
438 Semiconductor Device Manufacturing: Process 8 13 10 17 10 58
702 DP: Measuring, Calibrating, or Testing (Data Processing) 10 11 8 9 20 58
043 Fishing, Trapping, and Vermin Destroying 7 11 15 7 17 57
417 Pumps 11 10 18 10 8 57
051 Abrasive Tool Making Process, Material, or Composition 13 14 7 14 7 55
705 DP: Financial, Business Practice, Management, or Cost/Price Determination (Data Processing) 11 15 17 4 7 54
257 Active Solid-State Devices (e.g., Transistors, Solid-State Diodes) 8 12 11 8 13 52
180 Motor Vehicles 5 6 17 9 14 51
250 Radiant Energy 11 7 9 14 10 51
134 Cleaning and Liquid Contact with Solids 8 11 7 11 13 50
422 Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing 11 13 8 9 9 50
347 Incremental Printing of Symbolic Information 15 8 5 8 12 48
369 Dynamic Information Storage or Retrieval 8 12 7 11 9 47
362 Illumination 5 3 10 13 14 45
141 Fluent Material Handling, with Receiver or Receiver Coacting Means 10 7 11 8 8 44
482 Exercise Devices 9 6 8 10 11 44
433 Dentistry 9 10 9 11 3 42
119 Animal Husbandry 10 9 6 5 11 41
425 Plastic Article or Earthenware Shaping or Treating: Apparatus 11 4 6 13 7 41
174 Electricity: Conductors and Insulators 8 6 5 11 10 40
252 Compositions 8 9 9 6 8 40
040 Card, Picture, or Sign Exhibiting 8 2 13 6 10 39
123 Internal-Combustion Engines 2 7 15 9 6 39
442 Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, Etc.) 12 6 11 6 4 39
365 Static Information Storage and Retrieval 0 7 7 12 12 38
473 Games Using Tangible Projectile 9 8 7 9 5 38
715 DP: Presentation Processing of Document (Data Processing) 6 8 9 11 4 38
310 Electrical Generator or Motor Structure 10 9 4 10 4 37
712 Processing Architectures and Instruction Processing, e.g., Processors (Electrical Computers and Digital Processing Systems) 8 16 5 5 3 37
096 Gas Separation: Apparatus 5 6 6 7 12 36
114 Ships 10 9 8 5 4 36
211 Supports: Racks 3 7 8 7 11 36
220 Receptacles 12 7 7 4 6 36
716 DP: Design and Analysis of Circuit or Semiconductor Mask (Data Processing) 9 6 3 10 7 35
034 Drying and Gas or Vapor Contact with Solids 5 9 8 8 4 34
382 Image Analysis 6 4 10 6 8 34
095 Gas Separation: Processes 0 4 7 9 13 33
318 Electricity: Motive Power Systems 7 4 11 6 5 33
436 Chemistry: Analytical and Immunological Testing 7 10 5 3 8 33
198 Conveyors: Power-Driven 4 7 6 9 6 32
242 Winding, Tensioning, or Guiding 6 4 6 8 8 32
341 Coded Data Generation or Conversion 8 5 6 5 8 32
126 Stoves and Furnaces 3 13 5 6 4 31
296 Land Vehicles: Bodies and Tops 7 4 12 3 5 31
005 Beds 6 8 3 2 11 30
024 Buckles, Buttons, Clasps, Etc. 7 6 6 5 6 30
056 Harvesters 7 4 8 1 10 30
033 Geometrical Instruments 3 3 5 9 9 29
118 Coating Apparatus 7 6 6 5 4 28
297 Chairs and Seats 7 6 5 4 6 28
235 Registers (e.g., cash registers, calculators, devices for counting movements of devices, etc.) 3 5 8 5 6 27
375 Pulse or Digital Communications 4 4 6 7 6 27
701 DP: Vehicles, Navigation, and Relative Location (Data Processing) 2 3 3 7 12 27
083 Cutting 5 5 3 10 3 26
273 Amusement Devices: Games 3 6 5 5 7 26
381 Electrical Audio Signal Processing Systems and Devices 7 5 3 3 8 26
399 Electrophotography 11 6 8 0 1 26
099 Foods and Beverages: Apparatus 9 4 5 5 2 25
400 Typewriting Machines 4 4 2 5 10 25
703 DP: Structural Design, Modeling, Simulation, and Emulation (Data Processing) 6 7 6 3 3 25
074 Machine Element or Mechanism 2 8 7 3 4 24
102 Ammunition and Explosives 4 7 4 8 1 24
224 Package and Article Carriers 4 5 6 4 5 24
404 Road Structure, Process, or Apparatus 3 5 7 4 5 24
072 Metal Deforming 8 5 4 4 2 23
106 Compositions: Coating or Plastic 5 5 4 3 6 23
108 Horizontally Supported Planar Surfaces 2 6 6 3 6 23
333 Wave Transmission Lines and Networks 2 8 6 4 3 23
342 Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation) 2 4 4 9 4 23
405 Hydraulic and Earth Engineering 9 0 4 7 3 23
037 Excavating 2 4 5 7 4 22
182 Fire Escape, Ladder, or Scaffold 2 4 7 6 3 22
269 Work Holders 3 3 6 5 5 22
307 Electrical Transmission or Interconnection Systems 4 5 3 6 4 22
320 Electricity: Battery or Capacitor Charging or Discharging 1 8 4 8 1 22
455 Telecommunications 4 4 5 3 6 22
251 Valves and Valve Actuation 1 8 9 1 2 21
101 Printing 1 4 5 4 6 20
204 Chemistry: Electrical and Wave Energy 5 4 4 3 4 20
292 Closure Fasteners 7 5 3 1 4 20
331 Oscillators 5 3 2 6 4 20
379 Telephonic Communications 7 4 1 3 5 20
418 Rotary Expansible Chamber Devices 1 1 14 2 2 20
530 Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof 5 6 5 1 3 20
181 Acoustics 5 6 3 3 2 19
216 Etching a Substrate: Processes 6 4 4 1 4 19
285 Pipe Joints or Couplings 3 2 4 4 6 19
030 Cutlery 1 6 5 3 3 18
047 Plant Husbandry 2 4 6 3 3 18
254 Implements or Apparatus for Applying Pushing or Pulling Force 4 3 4 5 2 18
312 Supports: Cabinet Structure 5 6 4 1 2 18
016 Miscellaneous Hardware 7 3 2 3 2 17
081 Tools 1 4 4 4 4 17
172 Earth Working 4 3 3 3 4 17
229 Envelopes, Wrappers, and Paperboard Boxes 2 4 5 3 3 17
348 Television 2 3 6 1 5 17
372 Coherent Light Generators 7 5 4 1 0 17
374 Thermal Measuring and Testing 5 2 3 3 4 17
403 Joints and Connections 4 6 2 5 0 17
431 Combustion 0 3 3 4 7 17
454 Ventilation 3 4 2 5 3 17
508 Solid Anti-Friction Devices, Materials Therefor, Lubricant or Separate Compositions for Moving Solid Surfaces, and Miscellaneous Mineral Oil Compositions 1 3 2 7 4 17
049 Movable or Removable Closures 3 3 7 1 2 16
138 Pipes and Tubular Conduits 1 4 4 7 0 16
165 Heat Exchange 6 2 2 4 2 16
188 Brakes 0 3 2 8 3 16
200 Electricity: Circuit Makers and Breakers 2 4 1 2 7 16
261 Gas and Liquid Contact Apparatus 6 3 2 3 2 16
446 Amusement Devices: Toys 4 0 4 2 6 16
601 Surgery: Kinesitherapy 3 1 3 5 4 16
004 Baths, Closets, Sinks, and Spittoons 5 2 3 3 2 15
036 Boots, Shoes, and Leggings 2 5 5 0 3 15
084 Music 0 3 6 4 2 15
164 Metal Founding 3 2 2 2 6 15
271 Sheet Feeding or Delivering 0 3 3 6 3 15
330 Amplifiers 1 2 3 5 4 15
351 Optics: Eye Examining, Vision Testing and Correcting 3 2 3 5 2 15
383 Flexible Bags 3 4 6 0 2 15
111 Planting 3 1 5 3 2 14
175 Boring or Penetrating the Earth 3 5 2 1 3 14
228 Metal Fusion Bonding 6 3 2 2 1 14
358 Facsimile and Static Presentation Processing 2 0 2 4 6 14
060 Power Plants 6 2 2 1 2 13
124 Mechanical Guns and Projectors 3 4 4 1 1 13
132 Toilet 6 2 1 2 2 13
294 Handling: Hand and Hoist-Line Implements 1 5 4 2 1 13
355 Photocopying 0 5 4 3 1 13
366 Agitating (e.g., of articles and materials) 2 5 2 2 2 13
434 Education and Demonstration 5 3 1 1 3 13
440 Marine Propulsion 1 2 1 6 3 13
008 Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers 1 3 4 2 2 12
075 Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures 2 1 3 2 4 12
092 Expansible Chamber Devices 3 2 1 3 3 12
144 Woodworking 1 1 4 1 5 12
221 Article Dispensing 3 1 3 3 2 12
323 Electricity: Power Supply or Regulation Systems 5 5 0 1 1 12
363 Electric Power Conversion Systems 4 1 1 3 3 12
378 X-Ray or Gamma Ray Systems or Devices 2 0 4 2 4 12
392 Electric Resistance Heating Devices 2 3 3 2 2 12
463 Amusement Devices: Games 3 2 1 2 4 12
706 DP: Artificial Intelligence (Data Processing) 4 2 4 1 1 12
343 Communications: Radio Wave Antennas 4 0 1 3 3 11
415 Rotary Kinetic Fluid Motors or Pumps 2 1 2 5 1 11
452 Butchering 0 2 4 5 0 11
089 Ordnance 3 0 1 2 4 10
241 Solid Material Comminution or Disintegration 0 2 4 1 3 10
267 Spring Devices 1 2 2 1 4 10
384 Bearings 1 4 2 2 1 10
725 Interactive Video Distribution Systems 1 5 1 0 3 10
042 Firearms 0 1 1 4 3 9
177 Weighing Scales 3 3 0 1 2 9
192 Clutches and Power-Stop Control 2 5 2 0 0 9
283 Printed Matter 2 1 2 2 2 9
313 Electric Lamp and Discharge Devices 5 0 0 1 3 9
396 Photography 1 2 2 0 4 9
401 Coating Implements with Material Supply 1 2 2 1 3 9
409 Gear Cutting, Milling, or Planing 1 4 3 0 1 9
423 Chemistry of Inorganic Compounds 2 2 3 2 0 9
493 Manufacturing Container or Tube From Paper; or Other Manufacturing From a Sheet or Web 1 4 2 2 0 9
708 Arithmetic Processing and Calculating (Electrical Computers) 3 2 0 2 2 9
070 Locks 3 3 0 1 1 8
148 Metal Treatment 1 1 1 3 2 8
209 Classifying, Separating, and Assorting Solids 1 2 1 3 1 8
236 Automatic Temperature and Humidity Regulation 0 1 3 2 2 8
244 Aeronautics 2 2 2 0 2 8
277 Seal for a Joint or Juncture 0 1 1 3 3 8
408 Cutting by Use of Rotating Axially Moving Tool 1 2 2 0 3 8
410 Freight Accommodation On Freight Carrier 1 0 3 2 2 8
502 Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making 1 2 0 1 4 8
100 Presses 2 4 1 0 0 7
104 Railways 2 1 1 2 1 7
194 Check-Actuated Control Mechanisms 0 3 3 1 0 7
205 Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions 1 1 2 1 2 7
223 Apparel Apparatus 0 1 1 3 2 7
227 Elongated-Member-Driving Apparatus 1 3 0 2 1 7
303 Fluid-Pressure and Analogous Brake Systems 1 1 1 2 2 7
305 Wheel Substitutes for Land Vehicles 1 1 1 1 3 7
349 Liquid Crystal Cells, Elements and Systems 0 2 4 1 0 7
441 Buoys, Rafts, and Aquatic Devices 2 1 1 0 3 7
460 Crop Threshing or Separating 2 3 2 0 0 7
116 Signals and Indicators 0 1 2 1 2 6
135 Tent, Canopy, Umbrella, or Cane 0 2 2 1 1 6
160 Flexible or Portable Closure, Partition, or Panel 3 0 2 1 0 6
166 Wells (shafts or deep borings in the earth, e.g., for oil and gas) 3 2 0 1 0 6
249 Static Molds 2 0 1 2 1 6
256 Fences 0 1 3 2 0 6
474 Endless Belt Power Transmission Systems or Components 0 1 3 1 1 6
504 Plant Protecting and Regulating Compositions 2 0 2 1 1 6
516 Colloid Systems and Wetting Agents, Subcombinations Thereof, Processes of Making, Stabilizing, Breaking, or Inhibiting 1 0 3 2 0 6
091 Motors: Expansible Chamber Type 1 1 1 1 1 5
125 Stone Working 1 1 1 1 1 5
225 Severing by Tearing or Breaking 0 2 0 0 3 5
299 Mining or In Situ Disintegration of Hard Material 0 2 1 1 1 5
335 Electricity: Magnetically Operated Switches, Magnets, and Electromagnets 2 1 1 1 0 5
336 Inductor Devices 0 1 1 0 3 5
338 Electrical Resistors 1 0 3 1 0 5
367 Communications, Electrical: Acoustic Wave Systems and Devices 1 3 0 1 0 5
406 Conveyors: Fluid Current 2 0 3 0 0 5
411 Expanded, Threaded, Driven, Headed, Tool-Deformed, or Locked-Threaded Fastener 0 0 2 1 2 5
416 Fluid Reaction Surfaces (i.e., Impellers) 2 0 2 0 1 5
501 Compositions: Ceramic 0 1 0 1 3 5
007 Compound Hand Tools 1 1 2 0 0 4
068 Textiles: Fluid Treating Apparatus 1 1 0 0 2 4
071 Chemistry: Fertilizers 2 1 0 0 1 4
169 Fire Extinguishers 2 1 1 0 0 4
184 Lubrication 1 1 0 1 1 4
237 Heating Systems 1 2 0 0 1 4
279 Chucks or Sockets 0 1 1 2 0 4
290 Prime-Mover Dynamo Plants 0 3 0 0 1 4
368 Horology: Time Measuring Systems or Devices 1 1 0 1 1 4
386 Television Signal Processing for Dynamic Recording or Reproducing 2 0 0 1 1 4
450 Foundation Garments 0 0 1 1 2 4
475 Planetary Gear Transmission Systems or Components 0 2 0 1 1 4
503 Record Receiver Having Plural Interactive Leaves or a Colorless Color Former, Method of Use, or Developer Therefor 3 0 1 0 0 4
585 Chemistry of Hydrocarbon Compounds 1 1 0 1 1 4
054 Harness (for animals) 0 0 1 1 1 3
086 Ammunition and Explosive-Charge Making 1 1 0 1 0 3
149 Explosive and Thermic Compositions or Charges 2 1 0 0 0 3
162 Paper Making and Fiber Liberation 2 0 1 0 0 3
226 Advancing Material of Indeterminate Length 0 1 2 0 0 3
232 Deposit and Collection Receptacles 1 0 0 0 2 3
293 Vehicle Fenders 0 0 0 0 3 3
301 Land Vehicles: Wheels and Axles 0 2 1 0 0 3
315 Electric Lamp and Discharge Devices: Systems 0 1 0 2 0 3
380 Cryptography 2 0 1 0 0 3
402 Binder Device Releasably Engaging Aperture or Notch of Sheet 2 0 0 1 0 3
432 Heating 1 1 1 0 0 3
472 Amusement Devices 0 1 0 0 2 3
492 Roll or Roller 1 0 1 0 1 3
588 Hazardous or Toxic Waste Destruction or Containment 2 0 0 0 1 3
704 DP: Speech Signal Processing, Linguistics, Language Translation, and Audio Compression/Decompression (Data Processing) 0 0 2 1 0 3
001 ** Classification Undetermined ** 0 1 0 0 1 2
087 Textiles: Braiding, Netting, and Lace Making 2 0 0 0 0 2
110 Furnaces 2 0 0 0 0 2
131 Tobacco 0 1 0 1 0 2
152 Resilient Tires and Wheels 1 0 0 0 1 2
191 Electricity: Transmission To Vehicles 1 0 0 1 0 2
193 Conveyors, Chutes, Skids, Guides, and Ways 1 1 0 0 0 2
212 Traversing Hoists 0 0 2 0 0 2
215 Bottles and Jars 0 1 0 0 1 2
281 Books, Strips, and Leaves 1 1 0 0 0 2
337 Electricity: Electrothermally or Thermally Actuated Switches 0 1 0 0 1 2
412 Bookbinding: Process and Apparatus 0 0 0 1 1 2
464 Rotary Shafts, Gudgeons, Housings, and Flexible Couplings for Rotary Shafts 0 0 1 0 1 2
494 Imperforate Bowl: Centrifugal Separators 0 1 0 0 1 2
014 Bridges 0 1 0 0 0 1
027 Undertaking 0 0 0 0 1 1
044 Fuel and Related Compositions 0 0 1 0 0 1
057 Textiles: Spinning, Twisting, and Twining 1 0 0 0 0 1
063 Jewelry 0 0 0 0 1 1
065 Glass Manufacturing 1 0 0 0 0 1
082 Turning (e.g., for metal working) 1 0 0 0 0 1
105 Railway Rolling Stock 1 0 0 0 0 1
112 Sewing 1 0 0 0 0 1
122 Liquid Heaters and Vaporizers 1 0 0 0 0 1
136 Batteries: Thermoelectric and Photoelectric 0 1 0 0 0 1
139 Textiles: Weaving 0 0 1 0 0 1
140 Wireworking 1 0 0 0 0 1
150 Purses, Wallets, and Protective Covers 0 0 0 0 1 1
159 Concentrating Evaporators 0 1 0 0 0 1
173 Tool Driving or Impacting 0 0 0 1 0 1
187 Elevator, Industrial Lift Truck, or Stationary Lift for Vehicle 0 0 0 1 0 1
202 Distillation: Apparatus 0 1 0 0 0 1
203 Distillation: Processes, Separatory 0 1 0 0 0 1
208 Mineral Oils: Processes and Products 0 1 0 0 0 1
238 Railways: Surface Track 0 0 0 0 1 1
291 Track Sanders 0 0 0 0 1 1
298 Land Vehicles: Dumping 0 0 0 1 0 1
329 Demodulators 0 0 0 1 0 1
332 Modulators 0 0 0 1 0 1
346 Recorders 1 0 0 0 0 1
353 Optics: Image Projectors 0 0 0 0 1 1
377 Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems 0 0 0 0 1 1
419 Powder Metallurgy Processes 0 0 0 1 0 1
445 Electric Lamp or Space Discharge Component or Device Manufacturing 0 0 0 1 0 1
462 Books, Strips, and Leaves for Manifolding 0 1 0 0 0 1
470 Threaded, Headed Fastener, or Washer Making: Process and Apparatus 0 0 0 0 1 1
483 Tool Changing 0 1 0 0 0 1
507 Earth Boring, Well Treating, and Oil Field Chemistry 1 0 0 0 0 1
ALL ALL CLASSES 2473 2651 2715 2635 2751 13225


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