TY - BOOK AU - INDIA, TARIFF(Commission) ED - INDIA, TARIFF(Commission) TI - Continuance of protection to the engineer: s steel file industry in Bombay U1 - X9(D6,851): 531.2.N60t, KO PY - 1960/// CY - Delhi PB - Manager of publication N1 - Appendixes: p.35-48p ER -