Permissible electric mine lamps
By: by L.C. Ilsley and A.B. Hooker.
Contributors: Hooker, Alva Britt, 1886-
Series: Bulletin (United States. Bureau of Mines) ;; 332
Publisher: U.S. G.P.O.
Published: 1930
Place of publication: Washington
Language: eng
Number of pages: 39
Subjects: Electric lamps, Portable.; Safety lamps.
Notes: At head of title: U.S. Department of Commerce.  R.P. Lamont, secretary.  Bureau of Mines.  Scott Turner, director.
Includes index.