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发明名称
Eiserner Grubenstempel mit Verformungsschutz
摘要
申请公布号
DE807503(C)
申请公布日期
1951.06.28
申请号
DE1949R000680
申请日期
1949.12.31
申请人
WILHELM REPPEL
发明人
REPPEL WILHELM
分类号
E21D15/08;E21D15/12;E21D15/56
主分类号
E21D15/08
代理机构
代理人
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