Grinding and classification.

Author:	Fahrenwald, A. W.
Year:	1930
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of Commerce, Bureau of Mines,
SUDOC:	C 22.12:2990
Series:	Report of investigations / United States Department of Commerce, Bureau of Mines ;
Report Number:	2990
Subjects:	Ore-dressing
	Grinding and polishing
	Metals--Finishing
Link:	https://hdl.handle.net/2027/mdp.39015077566324