A hydraulic-powered platform for scaling high backs and walls

Author:	Rose, Charles K.
Additional Authors:	Morris, Carl., Utter, Stephen.
Year:	1954
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:5074
Series:	Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number:	5074
Subjects:	Mining machinery
	Hydraulic machinery
	Oil-shale industry--Equipment and supplies
Link:	https://hdl.handle.net/2027/mdp.39015078536516