Field testing the microminer--research continuous miner /

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Bibliographic Details
Main Author: Johnson, Bradley V.
Corporate Author: United States. Department of the Interior. Bureau of Mines
Other Authors: Strebig, Kelly C., Krepela, Scott W.
Format: Book
Language:English
Published: [Washington, D.C.] : U.S. Dept. of the Interior, 1975.
Series:Technical progress report (U.S. Departnent of the Interior. 89.
Subjects:
Mines and mineral resources.
Mineral industries.
Mine explorations > Research.
Mine safety.
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