Anthracite mechanical mining investigations : second testing of Brieden pneumatic packing machine / by David E. Wolfson, G. W. Birge and B. W. Naugle
Resource type: Ressourcentyp: BuchBookLanguage: English Series: USA. Report of investigations ; 5273Publisher: Washington : US Dept. of the Interior, Bureau of Mines, 1956Description: II, 22 SAction note:- 1
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