Some information from an investigation on methods of confining cardox blasting devices in boreholes in certain coal mines

Author:	Griffith, F. E.
Additional Authors:	Seeling, C. H.
Year:	1943
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:3714
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	3714
Subjects:	Coal mines and mining
	Blasting
	Boring
Link:	https://hdl.handle.net/2027/mdp.39015078487330