Anthracite mechanical-mining investigations :second testing of Brieden pneumatic packing machine

Author:	Whaite, Ralph H.
Year:	1956
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:5273
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	5273
Subjects:	Subsidences (Earth movements)
	Mining engineering
Link:	https://hdl.handle.net/2027/mdp.39015077553553