Surface evaluation of the 4M Miniminer System
By: by August J. Kwitowski.
Series: Bureau of Mines report of investigations ;; 8818; Report of investigations (United States. Bureau of Mines) ;; 8818.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1983
Place of publication: [Avondale, Md.]
Language: eng
Number of pages: 71
Subjects: Coal-mining machinery -- Testing.
Other titles: 4M Miniminer System.