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blasting (652331) 652331
heating (652331) 652331
lighting (652331) 652331
mechanical engineering (652331) 652331
weapons (652331) 652331
positive displacement machines for liquids (478926) 478926
pumps for liquids or elastic fluids (478926) 478926
non-positive displacement pumps (464872) 464872
indexing schemes relating to engines or pumps in varioussubclasses of classes f01-f04 (219940) 219940
engine plants in general (167701) 167701
machines or engines in general (167701) 167701
steam engines (167701) 167701
non-positive displacement machines or engines, e.g. steamturbines (148550) 148550
general tagging of cross-sectional technologies spanning over several sections of the ipc (143319) 143319
general tagging of new technological developments (143319) 143319
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (143319) 143319
indexing scheme for aspects relating tonon-positive-displacement machines or engines, gas-turbines orjet-propulsion plants (129739) 129739
technologies or applications for mitigation or adaptation againstclimate change (107987) 107987
combustion engines (93966) 93966
hot-gas or combustion-product engine plants (93966) 93966
performing operations (80575) 80575
transporting (80575) 80575
indexing scheme relating to machines or engines other thannon-positive-displacement machines or engines, to wind motors,to non-positive displacement pumps, and to generating combustionproducts of high pressure or high velocity (67295) 67295
engineering elements and units (64709) 64709
general measures for producing and maintaining effectivefunctioning of machines or installations (64709) 64709
thermal insulation in general (64709) 64709
machines or engines for liquids (62355) 62355
or a reactive propulsive thrust, not otherwise provided for (62355) 62355
producing mechanical power (62355) 62355
wind, spring weight and miscellaneous motors (62355) 62355
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (57428) 57428
air intakes for jet-propulsion plants (56725) 56725
controlling fuel supply in air-breathing jet-propulsion plants (56725) 56725
gas-turbine plants (56725) 56725
electricity (54819) 54819
technical subjects covered by former uspc (50529) 50529
climate change mitigation technologies related totransportation (48352) 48352
wind motors (43694) 43694
conversion or distribution of electric power (41809) 41809
generation (41809) 41809
technical subjects covered by former us classification (38658) 38658
pumps (34060) 34060
dynamo-electric machines (30872) 30872
indexing scheme relating to materials, material properties ormaterial characteristics for machines, engines or pumps otherthan non-positive-displacement machines or engines (30444) 30444
physics (29108) 29108
chemistry (25245) 25245
metallurgy (25245) 25245
combustion engines in general (23540) 23540
internal-combustion piston engines (23540) 23540
ranges (23399) 23399
ventilating (23399) 23399
cylinders (20637) 20637
pistons (20637) 20637
sealings (20637) 20637
human necessities (19489) 19489
fixed constructions (19299) 19299
shafts (19183) 19183
bearings (19082) 19082
elements or crankshaft mechanisms (19082) 19082
flexible shafts (19082) 19082
rotary bodies other than gearing elements (19082) 19082
air-conditioning, air-humidification, ventilation, use of aircurrents for screening (17913) 17913
machine tools (17708) 17708
metal-working not otherwise provided for (17708) 17708
rotary-piston, or oscillating-piston, positive-displacementmachines for liquids (14791) 14791
rotary-piston, or oscillating-piston, positive-displacementpumps (14791) 14791
technical subjects covered by former uspc cross-reference artcollections [xracs] and digests (13656) 13656
measuring (12774) 12774
testing (12774) 12774
combined operations (12281) 12281
other working of metal (12281) 12281
universal machine tools (12281) 12281
jet-propulsion plants (11927) 11927
aircraft (11831) 11831
aviation (11831) 11831
cosmonautics (11831) 11831
arrangements of sealings in combustion engines (11194) 11194
cylinders, pistons or casings, for combustion engines (11194) 11194
climate change mitigation technologies in the production orprocessing of goods (11036) 11036
cooling of internal-combustion engines (10561) 10561
cooling of machines or engines in general (10561) 10561
physical or chemical processes or apparatus in general (10473) 10473
combined heating and refrigeration systems (9858) 9858
heat pump systems (9858) 9858
liquefaction solidification of gases (9858) 9858
manufacture or storage of ice (9858) 9858
refrigeration or cooling (9858) 9858
supplying combustion engines in general, with combustiblemixtures or constituents thereof (9574) 9574
chemical surface treatment (9557) 9557
coating by vacuum evaporation, by sputtering, by ion implantationor by chemical vapour deposition, in general (9557) 9557
coating material with metallic material (9557) 9557
coating metallic material (9557) 9557
diffusion treatment of metallic material (9557) 9557
inhibiting corrosion of metallic material or incrustation ingeneral (9557) 9557
coating by vacuum evaporation, by sputtering, by ionimplantation or by chemical vapour deposition, in general (9020) 9020
surface treatment of metallic material by diffusion into thesurface, by chemical conversion or substitution (9020) 9020
vehicles in general (8591) 8591
control or regulation of electric motors, electric generatorsor dynamo-electric converters (8259) 8259
controlling transformers, reactors or choke coils (8259) 8259
combustion apparatus (8098) 8098
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English (539096) 539096
French (124417) 124417
Chinese (123834) 123834
German (109787) 109787
Japanese (19857) 19857
Korean (18597) 18597
Russian (14360) 14360
Spanish (8814) 8814
Portuguese (5381) 5381
Italian (3933) 3933
Danish (3095) 3095
Swedish (2675) 2675
Norwegian (1704) 1704
Finnish (1496) 1496
Dutch (1429) 1429
Polish (1220) 1220
Ukrainian (511) 511
Czech (490) 490
Romanian (211) 211
Hungarian (205) 205
Turkish (204) 204
Slovenian (178) 178
Croatian (109) 109
Greek (107) 107
Hebrew (70) 70
Slovak (63) 63
Bulgarian (58) 58
Indonesian (48) 48
Serbian (44) 44
Arabic (40) 40
Lithuanian (39) 39
Estonian (22) 22
Icelandic (15) 15
Latvian (13) 13
Moldavian (4) 4
Bosnian (1) 1
more...
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