Underground coal mine track inspection and cleaning vehicle
By: by Richard L. Unger.
Series: Report of investigations ;; 9246; Report of investigations (United States. Bureau of Mines) ;; no. 9246.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1989
Place of publication: Pgh [i.e. Pittsburgh] Pa
Language: eng
Number of pages: 34
Subjects: Mine railroads -- Track maintenance vehicles -- Design and construction.; Coal mines and mining -- Equipment and supplies -- Design and construction.