Why miners' portable electric lamps require safety devices

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100 1 ‡aIlsley, L. C. ‡q(Lee Clyde), ‡d1880-
245 1 0 ‡aWhy miners' portable electric lamps require safety devices / ‡cby L.C. Ilsley.
260 ‡a[Washington, D.C.] : ‡bU.S. Dept. of the Interior, Bureau of Mines, ‡c1922.
300 ‡a9 p. : ‡bill. ; ‡c27 cm.
490 0 ‡aReport of investigations / United States. Bureau of Mines ; ‡v2371
500 ‡a"July, 1922."
538 ‡aMode of access: Internet.
650 0 ‡aElectric lamps, Portable.
650 0 ‡aSafety lamps.
650 0 ‡aMines and mineral resources ‡xEquipment and supplies.
650 0 ‡aMines and mineral resources ‡xResearch.
710 1 ‡aUnited States. ‡bBureau of Mines.
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DAT 1 ‡a20221208060740.0 ‡b2024-02-22T18:54:39Z
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