Multiple-shift mechanical mining in some bituminous coal mines.
Progress report 2 /
by Albert L. Toenges and Frank A. Jones.

Description

Main Author

Toenges, Albert L. (Albert Louis), 1889-

Related Names

Jones, Frank A.
United States. Bureau of Mines.

Language(s)

English

Published

[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1939.

Subjects

Coal mines and mining.

Physical Description

58 p. : ill. ; 27 cm.

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