Accounting	5
Agriculture	100
Antennas and waveguides	21
Art	1
Astronautics	11
Astronomy	1
Automated equipment	22
Automatic control	8
Banking	6
Business	18
Chemistry	121
Coal	9
Commerce	26
Communications	462
Computer numerical control	7
Construction	72
Criminal law	14
Cultural studies	72
Customs	14
Data processing	2
Demography	8
Dyalysis	2
Earth sciences	168
Ecology	4
Economics	643
Education	18
Electric machinery	3
Electric motors	1
Electric traction	9
Electricity generation	26
Electronics	618
Employment	1
Energy industry	32
Environment	130
Finances	589
Fish farming pisciculture	24
Food industry	2
Foreign trade	18
Forestry	1
General	736
Government, administration and public services	26
Health care	103
Hobbies and pastimes	12
Human rights activism	11
Immigration and citizenship	41
Industry	57
Information technology	487
Insurance	154
International law	7
International Monetary Fund	95
International relations	1
International trade	4
Isolation	1
Labor law	50
Law	1199
Life sciences	84
Lighting other than cinema	1
Magnetics	3
Marketing	116
Materials science	23
Mathematics	22
Measuring instruments	23
Mechanic engineering	112
Medical	201
Metallurgy	118
Meteorology	1
Microsoft	33
Military	2
Mineral products	2
Municipal planning	7
Natural resourses and wildlife conservation	2
Natural sciences	33
Nautical	1
Nuclear and fusion power	6
Nuclear physics	8
Obsolete / dated	6
Occupational health & safety	1
Packaging	6
Patents	290
Pharmacy and pharmacology	27
Physical sciences	5
Physics	2
Piezoelectric crystals	2
Politics	73
Power electronics	1
Power lines	5
Power system protection	17
Private international law	5
Procedural law	42
Project management	2
Radio	5
Rail transport	3
Reliability	2
Religion	2
Research and development	1
Scientific	11
Scuba diving	1
Security systems	9
Semiconductors	6
Shipbuilding	1
Social science	30
Sociology	2
Sound recording	5
Statistics	90
Taxes	18
Technology	488
Telegraphy	3
Textile industry	5
Thermal Energy	7
Trade unions	1
Transformers	4
Transport	580
United Nations	1
Video recording	1
Work flow	32

eint.