Permissible coal-handling equipment approved from January, 1926, to December, 1930, inclusive
By: by L.C. Ilsley, E.J. Gleim, and H.B. Brunot.
Contributors: Brunot, Hilary Breton, 1894-; Gleim, Ernest J.
Series: Bulletin (United States. Bureau of Mines) ;; 343
Publisher: U.S. G.P.O.
Published: 1931
Place of publication: Washington
Language: eng
Number of pages: 91
Subjects: Coal-mining machinery.
Notes: At head of title: U.S. Department of Commerce.  R.P. Lamont, secretary.  Bureau of Mines.  Scott Turner, director.