Active list of permissible explosives and devices approved previous to June 30, 1943

Author:	Tiffany, J. E.
Additional Authors:	Gaugler, Z. C.
Year:	1943
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:3736
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	3736
Subjects:	Coal mines and mining--Explosives
	Explosives--United States
	Blasting--United States
Link:	https://hdl.handle.net/2027/mdp.39015078487462