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Safety Code for Mechanical Power-transmission Apparatus
Rhode Island. Industrial Code Commission for Safety and Health
其他書名
Effective March 28, 1947
出版State of Rhode Island, Department of Labor, Industrial Code Commission for Safety and Health, 1947
URLhttp://books.google.com.hk/books?id=SQnRA-wG5uUC&hl=&source=gbs_api