Testing modified coal-cutting bit designs for reduced energy, dust, and incendivity
By: by Wallace W. Roepke and Bruce D. Hanson.
Contributors: Hanson, Bruce D.
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;; 8801; Report of investigations (United States. Bureau of Mines) ;; 8801.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1983
Place of publication: [Avondale, Md.]
Language: eng
Number of pages: 31
Subjects: Coal-cutting bits -- Testing.
Notes: Includes bibliographical references.