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'Modified longwall mining with a German coal planer. Progress report 2: Completion of mining in three adjacent panels in the Pocahontas no. 4 coal bed, Helen, W. Va.' Please give credit to the Bureau of Mines, United States, Department of Interior.

Interior of a Coal Mine with Roof Supports Along Longwall Face

Identifier:
002721
Title:
Interior of a Coal Mine with Roof Supports Along Longwall Face
Description:
'Modified longwall mining with a German coal planer. Progress report 2: Completion of mining in three adjacent panels in the Pocahontas no. 4 coal bed, Helen, W. Va.' Please give credit to the Bureau of Mines, United States, Department of Interior.
Subjects:
Coal mines and mining., Coal Mines and Mining--Mine Interiors--Machinery., Mine roof control., Longwall mining.
Acquisition Source:
Munn, Robert F.
Acquisition Method:
Acquired
Medium:
print
Projects:
West Virginia History OnView