Forschung des Bureau of Mines in Bezug auf Automatisierung der Kohlegewinnung
William B. Schmidt; Eugene R. Palowitch; Howard E. Parkinson
Year of publication: |
1976
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Authors: | Schmidt, William B. ; Palowitch, Eugene R. ; Parkinson, Howard E. |
Published in: | |
Subject: | USA | Bergbau |
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