Longwall mining methods in some mines of the Middle Western states /
by Albert L. Toenges.

Description

Main Author

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

Language(s)

English

Published

[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1936.

Subjects

Longwall mining > Longwall mining / Equipment and supplies.

Physical Description

62 p. : ill. ; 27 cm.

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