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Why men were killed at Pennsylvania anthracite mines in 1950

Modern automatic electrically controlled elevators for transporting men at two coal mines in Western Pennsylvania

Design and testing of Bureau of Mines coal planer

Published Year

• 1950-1959 (3) *

Subject

• Coal mines and mining--Pennsylvania (3) *
• Coal mines and mining--Pennsylvania--Equipment and supplies (1)
• Elevators (1)
• Hoisting machinery--Pennsylvania (1)
• Mine accidents--Pennsylvania (1)

Author

• Buch, John Willard. (1)
• Forbes, John J. V. (1)
• Griffith, Walter R. (1)
• Holcomb, J. W. (1)
• Schimmel, John T. (1)
• Weaver, H. F. (1)

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