Guarding trolley wires in mines.

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Bibliographic Details
Online Access:	Full Text (via ProQuest)
Other Authors:	Gleim, E. J. (Ernest J.)
Format:	Government Document eBook
Language:	English
Published:	Washington, D.C. : [s.n.], 1932.
Series:	Mines Bur. Info. Circ. No. 6577.
Subjects:	Cables. Mines and mineral resources > Equipment and supplies.

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Full Text (via ProQuest)

Holdings details from Online
Call Number:	C22.11-6577
C22.11-6577	Available