A gage and recording equipment for measuring dynamic strain in rock / by Leonard Obert and Wilbur I. Duvall.

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Main Author: Obert, Leonard, 1906-
Other Authors: Duvall, Wilbur I.
Format: Government Document Book
Language:English
Published: [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, 1949.
Series:Report of investigations (United States. Bureau of Mines) ; 4581.
Subjects: