Test operation of a pneumatic vibrating-blade planer in phosphate and coal :a progress report on planer-mining research, 1958-60

Author:	Anderson, Webster S.
Year:	1962
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:6140
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	6140
Subjects:	Coal mines and mining
	Phosphate mines and mining
	Mining engineering
Links:	https://hdl.handle.net/2027/mdp.39015078523746
	no.6121-6140 1962