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A hydraulic-powered platform for scaling high backs and walls
- Author / Creator
- Available as
- Physical
Details
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- Creator
- by C.K. Rose, Stephen Utter, and Carl Morris
- Format
- Books
- Language
- English
- Contributors
- Publication
-
- [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, [1954]
- Physical Details
-
- 4 pages, 6 pages of plates : illustrations ; 27 cm
- OCLC
- ocm33956033
- "August 1954."
- "Int. - Bu. of Mines, Pgh., Pa. 6217"--p. 4.