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system of classificationstresses
patents. система классификации
system of classification: 39 phrases in 23 subjects
Aviation1
Aviation medicine1
Chemistry5
Diplomacy2
Economy3
Electronics1
Firefighting and fire-control systems1
Forestry1
General5
Immunology1
International Monetary Fund1
Librarianship3
Logistics1
Makarov2
Mining1
Nautical1
Occupational health & safety1
Programming1
Sakhalin1
Sports1
Technology1
Transport1
United Nations3