Drilling and broaching in slate quarries /
by Oliver Bowles.

Description

Main Author

Bowles, Oliver, 1877-1958.

Related Names

United States. Bureau of Mines.

Language(s)

English

Published

Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1923.

Subjects

Broaching.
Boring.
Slate.
Quarries and quarrying.

Note

"October, 1923."

Physical Description

6 p. ; 27 cm.

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