Electric signaling system, Ross shaft, Homestake Mining Co. /
by John F. Wiggert.

Description

Main Author

Wiggert, John F.

Language(s)

English

Published

[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1937.

Subjects

Homestake Mining Company.
Mines and mineral resources.

Physical Description

7 p. : ill. ; 27 cm.

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