Underground coal mine track inspection and cleaning vehicle
By: by Richard L. Unger.
Series: Report of investigations (United States. Bureau of Mines) -- no. 9246.
Publisher: Dept. of the Interior
Published: 1989
Place of publication: Washington, DC
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
Notes:  88600468  t_oclc

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