هستی شناسی های علمی و فنی: علوم زیستی و بهداشت دو: Telephone AND/OR telegraph operator

Social context > Occupation > Clerical occupations > Clerical AND/OR related worker > Telephone AND/OR telegraph operator

Social context > Occupation > worker > Clerical AND/OR related worker > Telephone AND/OR telegraph operator

Telephone AND/OR telegraph operator

http://www.irandoc.acir/onto/irandoc/106348003

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Biological Sciences and Healthcare, part 2