Approved electric lamps for miners
By: by H.H. Clark and L.C. Ilsley
Edition: 1st ed.].
Series: United States Bureau of Mines. Bulletin -- 131; Bulletin (United States. Bureau of Mines) -- no. 131
Publisher: G.P.O.
Published: 1917
Place of publication: Washington
Language: eng
Number of pages: 59
Subjects: Portable Electric lamps; Mining machinery; Machines minières
Description: Describes tests and lamps.
Notes: At head of title: Department of the Interior/ Franklin K. Lane, Secretary/ Bureau of Mines/ Van. H. Manning, Director.

"Publications on electrical equipment for mines": p. 54-55.

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