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- Longwall mining methods in some mines of the Middle Western states
- Modified longwall mining with a German coal planer (plow) in the Pocohontas No. 4 coal bed, Helen, W. Va.
- Mining with a Dosco continuous miner on a longwall face
- Modified longwall mining with a German coal planer.
- Modified longwall mining with German coal planers :summary of operations at five coal mines
- Longwall mining in bituminous coal mines with planers, shearer- loaders, and self-advancing hydraulic roof supports