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mechanical engineering (361367) 361367
heating (361360) 361360
blasting (361359) 361359
lighting (361359) 361359
weapons (361359) 361359
fluid-pressure actuators (360742) 360742
hydraulics or pneumatics in general (360742) 360742
details of fluid-pressure systems, not otherwise provided for (326306) 326306
fluid-pressure actuators, e.g. servo-motors (326306) 326306
systems acting by means of fluids in general (326306) 326306
performing operations (100195) 100195
transporting (100195) 100195
engineering elements and units (90941) 90941
general measures for producing and maintaining effectivefunctioning of machines or installations (90941) 90941
thermal insulation in general (90941) 90941
general tagging of cross-sectional technologies spanning over several sections of the ipc (52981) 52981
general tagging of new technological developments (52981) 52981
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (52981) 52981
technical subjects covered by former uspc (47444) 47444
valves (44835) 44835
actuating-floats (44823) 44823
cocks (44823) 44823
devices for venting or aerating (44823) 44823
taps (44823) 44823
technical subjects covered by former us classification (44653) 44653
fixed constructions (43425) 43425
physics (35044) 35044
foundations (31263) 31263
hydraulic engineering (31263) 31263
soil shifting (31263) 31263
dredging (30083) 30083
soil-shifting (30083) 30083
vehicles in general (24625) 24625
fluid-circuit elements predominantly used for computing orcontrol purposes (19634) 19634
fluid dynamics, i.e. methods or means for influencing the flowof gases or liquids (19150) 19150
positive displacement machines for liquids (17357) 17357
pumps for liquids or elastic fluids (17357) 17357
hauling (17288) 17288
hoisting (17288) 17288
lifting (17288) 17288
testing (16639) 16639
measuring (16638) 16638
controlling (16139) 16139
regulating (16139) 16139
gearing (15633) 15633
pumps (14285) 14285
cylinders (11590) 11590
pistons (11590) 11590
sealings (11587) 11587
electricity (11494) 11494
systems for controlling or regulating non-electric variables (11225) 11225
arrangement of braking elements on vehicles in general (10681) 10681
brake control systems or parts thereof, in general (10681) 10681
portable devices for preventing unwanted movement ofvehicles (10681) 10681
vehicle brake control systems or parts thereof (10681) 10681
vehicle modifications to facilitate cooling of brakes (10681) 10681
land vehicles for travelling otherwise than on rails (10100) 10100
human necessities (10082) 10082
engine plants in general (9898) 9898
machines or engines in general (9898) 9898
steam engines (9898) 9898
motor vehicles (9707) 9707
trailers (9707) 9707
hoisting, lifting, hauling or pushing, not otherwise providedfor, e.g. devices which apply a lifting or pushing forcedirectly to the surface of a load (9696) 9696
joints or fittings for pipes (8882) 8882
means for thermal insulation in general (8882) 8882
pipes (8882) 8882
supports for pipes, cables or protective tubing (8882) 8882
brakes (8642) 8642
clutches (8641) 8641
couplings for transmitting rotation (8641) 8641
physical or chemical processes or apparatus in general (8513) 8513
combustion engines (8421) 8421
hot-gas or combustion-product engine plants (8421) 8421
machine tools (8163) 8163
metal-working not otherwise provided for (8163) 8163
earth drilling (7732) 7732
mining (7732) 7732
technologies or applications for mitigation or adaptation againstclimate change (7139) 7139
basic electric elements (6987) 6987
aircraft (6913) 6913
aviation (6912) 6912
cosmonautics (6911) 6911
manipulators (6184) 6184
hand tools (6183) 6183
portable power-driven tools (6183) 6183
aeroplanes (5699) 5699
helicopters (5699) 5699
cranes (5604) 5604
load-engaging elements or devices for cranes, capstans,winches, or tackles (5604) 5604
earth drilling, e.g. deep drilling (5554) 5554
obtaining oil, gas, water, soluble or meltable materials or aslurry of minerals from wells (5554) 5554
means for damping vibration (5302) 5302
shock-absorbers (5302) 5302
springs (5302) 5302
arrangement or mounting of plural diverse prime-movers invehicles (5224) 5224
arrangement or mounting of propulsion units or oftransmissions in vehicles (5224) 5224
arrangements in connection with cooling, air intake, gasexhaust or fuel supply of propulsion units, in vehicles (5224) 5224
auxiliary drives for vehicles (5224) 5224
instrumentation or dashboards for vehicles (5224) 5224
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English (291915) 291915
German (61280) 61280
Chinese (60040) 60040
French (51168) 51168
Korean (8335) 8335
Japanese (7453) 7453
Russian (6363) 6363
Spanish (4855) 4855
Italian (3557) 3557
Swedish (3060) 3060
Portuguese (2465) 2465
Finnish (1416) 1416
Danish (1263) 1263
Norwegian (1135) 1135
Dutch (1075) 1075
Polish (869) 869
Romanian (452) 452
Ukrainian (275) 275
Czech (250) 250
Turkish (117) 117
Hungarian (85) 85
Slovak (79) 79
Slovenian (55) 55
Bulgarian (48) 48
Greek (34) 34
Indonesian (21) 21
Croatian (18) 18
Hebrew (17) 17
Arabic (14) 14
Serbian (13) 13
Latvian (12) 12
Lithuanian (10) 10
Icelandic (7) 7
Estonian (6) 6
Bosnian (1) 1
Moldavian (1) 1
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