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发明名称
Verfahren und Abbauduese zur hydro-mechanischen Kohlengewinnung
摘要
申请公布号
DE1212922(B)
申请公布日期
1966.03.24
申请号
DE1964M063297
申请日期
1964.11.28
申请人
BERGWERKSVERBAND G.M.B.H.
发明人
STEPHAN DR.-ING. KARL
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