Installation of high-tension power circuits in coal mines

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086 0 ‡aI 28.27:7044
100 1 ‡aGleim, E. J. ‡q(Ernest J.)
245 1 0 ‡aInstallation of high-tension power circuits in coal mines / ‡cby E.J. Gleim.
260 ‡aWashington, D.C. : ‡bU.S. Dept. of the Interior, Bureau of Mines, ‡c1939.
300 ‡a14 p. : ‡bill. ; ‡c27 cm.
490 0 ‡aInformation circular / Bureau of Mines ; ‡v7044
500 ‡a"February 1939" -Cover.
538 ‡aMode of access: Internet.
650 0 ‡aElectricity in mining.
710 1 ‡aUnited States. ‡bBureau of Mines.
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