Some rules for the safeguarding of hazardous machinery.
Some rules for the safeguarding of hazardous machinery.
- Washington, U.S. Govt. print. off., 1936.
- 15 p. 57 plates. 22 cm.
At head of title: United States Dept. of labor ... Division of labor standards ... Loose-leaf.
l 36000050 //r48
Machinery--Safety appliances.
Industrial safety.
HD7273 / .U55 1936
331.82315
At head of title: United States Dept. of labor ... Division of labor standards ... Loose-leaf.
l 36000050 //r48
Machinery--Safety appliances.
Industrial safety.
HD7273 / .U55 1936
331.82315