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发明名称
SCHNEIDEINHEIT FUER MINERALIEN-ABBAUMASCHINEN
摘要
申请公布号
DE2919139(A1)
申请公布日期
1979.11.15
申请号
DE19792919139
申请日期
1979.05.11
申请人
DRESSER EUROPE S.A.
发明人
ALBERT PARROTT,GEORGE
分类号
E21C27/02;E21C31/02;(IPC1-7):E21C27/00
主分类号
E21C27/02
代理机构
代理人
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