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Approval system of the Bureau of Mines as applied to permissible storage-battery locomotives :third complete investigation under schedule 15

Author:	Ilsley, L. C.
Additional Authors:	Brunot, H. B.,
Year:	1924
Document Type:	MAIN
SUDOC:	I 28.23:2581
Series:	Reports of investigations ;
Report Number:	2581
Subjects:	Mine safety
	Electric locomotives
	Storage batteries
Link:	https://hdl.handle.net/2027/mdp.39015095269596