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science & technology (124) 124
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general tagging of cross-sectional technologies spanning over several sections of the ipc (22) 22
general tagging of new technological developments (22) 22
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (22) 22
technologies or applications for mitigation or adaptation againstclimate change (21) 21
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production and refining of metals (19) 19
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analysis (18) 18
climate change mitigation technologies in the production orprocessing of goods (18) 18
physical or chemical processes or apparatus in general (18) 18
阅读知识 (18) 18
details of fluid-pressure systems, not otherwise provided for (17) 17
fluid-pressure actuators (17) 17
fluid-pressure actuators, e.g. servo-motors (17) 17
hydraulics or pneumatics in general (17) 17
systems acting by means of fluids in general (17) 17
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humans (16) 16
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electric communication technique (15) 15
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hoisting, lifting, hauling or pushing, not otherwise providedfor, e.g. devices which apply a lifting or pushing forcedirectly to the surface of a load (12) 12
hunting (12) 12
processes or means, e.g. batteries, for the direct conversionof chemical into electrical energy (12) 12
trapping (12) 12
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cleaning (10) 10
cleaning in general (10) 10
devices or arrangements, the optical operation of which ismodified by changing the optical properties of the medium of thedevices or arrangements for the control of the intensity,colour, phase, polarisation or direction of light, e.g.switching, gating, modulating or demodulating (10) 10
frequency-changing (10) 10
functional features or details of lighting devices or systemsthereof (10) 10
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