Permissible mine equipment approved  during the calendar years 1953-54
By: by R. . Kearns and H. B. Brunot.
Contributors: Brunot, H. B.; United States. Bureau of Mines.
Series: Information circular (United States. Bureau of Mines) -- 7722
Publisher: U.S.Dept. of the Interior, Bureau of Mines
Published: 1955
Place of publication: Washington, DC
Language: eng
Number of pages: 12
Subjects: Coal mines and mining -- United States -- Safety measures.; Mine safety -- United States -- Equipment and supplies.
Notes: 1