The wire saw in slate quarrying :
supplementary report /
by J.R. Thoenen.

Description

Main Author

Thoenen, J. R. (John Roy), b. 1886.

Language(s)

English

Published

Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1928.

Subjects

Quarries and quarrying.
Slate.

Physical Description

8 p. : ill.

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