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physics (1292) 1292
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performing operations (1208) 1208
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conversion or distribution of electric power (187) 187
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animals (186) 186
male (179) 179
transmission of digital information, e.g. telegraphiccommunication (176) 176
analysis (175) 175
hygiene (169) 169
medical or veterinary science (169) 169
materials science (155) 155
air-conditioning, air-humidification, ventilation, use of aircurrents for screening (150) 150
machine tools (150) 150
metal-working not otherwise provided for (150) 150
combined heating and refrigeration systems (144) 144
heat pump systems (144) 144
liquefaction solidification of gases (144) 144
manufacture or storage of ice (144) 144
refrigeration or cooling (144) 144
agriculture (140) 140
engineering elements and units (137) 137
general measures for producing and maintaining effectivefunctioning of machines or installations (137) 137
thermal insulation in general (137) 137
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female (131) 131
controlling (129) 129
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materials science, multidisciplinary (113) 113
cold rooms (110) 110
cooling or freezing apparatus not covered by any othersubclass (110) 110
electric techniques not otherwise provided for (110) 110
ice-boxes (110) 110
refrigerators (110) 110
general tagging of cross-sectional technologies spanning over several sections of the ipc (108) 108
general tagging of new technological developments (108) 108
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (108) 108
mice (103) 103
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presentation of data (100) 100
recognition of data (100) 100
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technologies or applications for mitigation or adaptation againstclimate change (100) 100
physical or chemical processes or apparatus in general (98) 98
control or regulating systems in general (96) 96
data processing systems or methods, specially adapted foradministrative, commercial, financial, managerial, supervisoryor forecasting purposes (96) 96
functional elements of such systems (96) 96
monitoring or testing arrangements for such systems orelements (96) 96
systems or methods specially adapted for administrative,commercial, financial, managerial, supervisory or forecastingpurposes, not otherwise provided for (96) 96
investigating or analysing materials by determining theirchemical or physical properties (95) 95
processes or means, e.g. batteries, for the direct conversionof chemical into electrical energy (95) 95
engineering, electrical & electronic (93) 93
chemistry, physical (92) 92
exact sciences and technology (92) 92
preparations for medical, dental, or toilet purposes (92) 92
mechanical metal-working without essentially removingmaterial (91) 91
optics (91) 91
punching metal (91) 91
pharmacology & pharmacy (87) 87
physics, applied (87) 87
accessories, closures, or fittings therefor (86) 86
containers for storage or transport of articles or materials,e.g. bags, barrels, bottles, boxes, cans, cartons, crates,drums, jars, tanks, hoppers, forwarding containers (86) 86
packages (86) 86
packaging elements (86) 86
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