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Applicability of radio to emergency mine communications : progress report, September 1946 to November 1947 / by E.W. Felegy and E.J. Coggeshall.

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Bibliographic Details
Online Access:	Search for the full-text version of this title in HathiTrust
Main Author:	Felegy, E. W.
Other Authors:	Coggeshall, E. J. (Earl Jeffries), 1902-
Format:	Government Document Book
Language:	English
Published:	[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, [1948]
Series:	Report of investigations (United States. Bureau of Mines) ; 4294.
Subjects:	Radio in mining. Mine communication systems. Mine safety > Equipment and supplies.

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Call Number:	I 28.23:4271-4300
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