Tentative inspection standards for anthracite mines

Year:	1944
Document Type:	MAIN
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7282
Series:	Information circular ;
Report Number:	7282
Subjects:	Coal mines and mining--Safety regulations--United States
	Mine inspection--Standards--United States
	Anthracite coal industry--Standards--United States
Link:	https://hdl.handle.net/2027/mdp.39015095086412