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1959 and January allied products Chemicals apparel Paper appendix table architectural services basis of unrounded Chemicals and allied cists classified clay correspond exactly Electrical equipment Aircraft Employer Identification engaged in research Engineering and architectural engineers primarily engaged Fabricated metal products Food and kindred full-time equivalent geophysicists ical industries Fabricated metal industries Food January 1960 Industry kindred products Textile Labor Statistics Machinery except electrical ment metal industries Fabricated Metallurgists National Science Foundation nicians nonmanufacturing industries nonsampling error number of companies number of scientists occupational group Paper and allied percent change Primary metal industries products and apparel products and ex products and extraction products and ordnance Professional and scientific public utilities questionnaire ratio Relative errors reported research and development research-development rounded figures shown sampling errors scien scientific and technical scientific instruments scientists and engineers size of company standard errors strict confidence survey technical personnel Textile mill products total employment total number variance