Permissible coal-cutting equipment approved prior to July 1, 1932
By: by L.C. Ilsley, H.B. Brunot, and H.B. Freeman.
Contributors: Brunot, Hillary Breton, 1894-; Freeman, Howard Bassett, 1889-
Series: Bulletin (United States. Bureau of Mines) ;; 382
Publisher: U.S. G.P.O.
Published: 1934
Place of publication: Washington
Language: eng
Number of pages: 129
Subjects: Coal-mining machinery.
Notes: Includes bibliographical references.
At head of title: U.S. Department of the Interior. Harold L. Ickes, secretary. Bureau of Mines. John W. Finch, director.