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Anthracite mechanical mining investigations :progress report 1 : preliminary underground tests of the Bureau of Mines scraper-shaker loading machine for driving gangways

Published Year

• 1940-1949 (1)

Subject

• Anthracite coal industry--Equipment and supplies (1)
• Coal-mining machinery (1)
• Loaders (Machines)--Testing (1) *

Author

• Allan, Andrew, (1)
• Buch, John W. (1) *

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