Electric switches for use in gaseous mines,

Electric switches for use in gaseous mines,

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Bibliographic Details
Author / Creator:	Clark, H. H, (Harold Hayward), 1876-
Imprint:	Washington, Govt. Print. Off., 1913.
Description:	38 p. ill., VI Pl. 25 cm.
Language:	English
Series:	[U.S.] Bureau of mines. Bulletin 68 Bulletin (United States. Bureau of Mines) no. 68.
Subject:	Electric switchgear Electricity in mining Electric switchgear. Electricity in mining.
Format:	U.S. Federal Government Document Print Book
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/4048299

Hidden Bibliographic Details
Other authors / contributors:	Crocker, Ralph W., joint author.
Notes:	At head of title: Department of the Interior. Bureau of Mines. Joseph A. Holmes, director. On verso of t.-p.: First edition. November, 1913. "Publications on mine accidents and methods of mining": p. 37-38.

Mansueto

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Call Number:	TN23.A19 no.68
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