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performing operations (277) 277
transporting (277) 277
physics (234) 234
chemistry (226) 226
science & technology (218) 218
metallurgy (212) 212
heating (191) 191
blasting (190) 190
lighting (190) 190
mechanical engineering (190) 190
weapons (190) 190
life sciences & biomedicine (138) 138
electricity (136) 136
general tagging of cross-sectional technologies spanning over several sections of the ipc (105) 105
general tagging of new technological developments (105) 105
technical subjects covered by former uspc cross-reference art collections [xracs] and digests (105) 105
humans (103) 103
textiles (84) 84
combustion apparatus (81) 81
combustion processes (81) 81
natural or artificial threads or fibres (81) 81
spinning (81) 81
spinning or twisting (80) 80
male (79) 79
technologies or applications for mitigation or adaptation againstclimate change (78) 78
air (75) 75
methodsor apparatus for combustion using fluid fuelor solid fuel suspended in (75) 75
information storage (72) 72
information storage based on relative movement between recordcarrier and transducer (72) 72
female (70) 70
physical sciences (66) 66
electric communication technique (65) 65
engineering elements and units (64) 64
general measures for producing and maintaining effectivefunctioning of machines or installations (64) 64
thermal insulation in general (64) 64
basic electric elements (63) 63
carburetting air or other gases (59) 59
fuels (59) 59
human necessities (59) 59
lubricants (59) 59
peat (59) 59
petroleum, gas or coke industries (59) 59
production of producer gas, water-gas, synthesis gas fromsolid carbonaceous material, or mixtures containing these gases (59) 59
technical gases containing carbon monoxide (59) 59
aged (58) 58
middle aged (58) 58
calculating (57) 57
computing (57) 57
counting (57) 57
air supply (56) 56
draught-inducing (56) 56
reduction of greenhouse gas [ghg] emissions, related to energygeneration, transmission or distribution (56) 56
supplying non-combustible liquid or gas (56) 56
ferrous or non-ferrous alloys (55) 55
treatment of alloys or non-ferrous metals (55) 55
consuming waste products by combustion (53) 53
conveying (53) 53
cremation furnaces (53) 53
handling thin or filamentary material (53) 53
lining machines (53) 53
packing (53) 53
printing (53) 53
stamps (53) 53
storing (53) 53
typewriters (53) 53
correction of typographical errors (50) 50
i.e. mechanisms printing otherwise than from a forme (50) 50
selective printing mechanisms (50) 50
alloys (47) 47
handling thin or filamentary material, e.g. sheets, webs,cables (47) 47
flues (44) 44
removal or treatment of combustion products or combustionresidues (44) 44
engine plants in general (42) 42
machines or engines in general (42) 42
pictorial communication, e.g. television (42) 42
steam engines (42) 42
measuring (41) 41
testing (41) 41
cinematography (40) 40
electrography (40) 40
holography (40) 40
hygiene (40) 40
machine tools (40) 40
medical or veterinary science (40) 40
metal-working not otherwise provided for (40) 40
photography (40) 40
methods of steam generation (39) 39
steam boilers (39) 39
steam generation (39) 39
compositions based thereon (37) 37
oceanography (37) 37
organic macromolecular compounds (37) 37
their preparation or chemical working-up (37) 37
technical subjects covered by former uspc (36) 36
fixed constructions (35) 35
physical or chemical processes or apparatus in general (35) 35
welding (35) 35
cladding or plating by soldering or welding (34) 34
cutting by applying heat locally, e.g. flame cutting (34) 34
soldering or unsoldering (34) 34
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English (1200) 1200
Japanese (152) 152
French (140) 140
German (111) 111
Chinese (58) 58
Korean (7) 7
Finnish (4) 4
Spanish (4) 4
Swedish (4) 4
Danish (1) 1
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