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发明名称
Eiserner Spleissschuh fuer hoelzerne Grubenstempel
摘要
申请公布号
DE672059(C)
申请公布日期
1939.02.20
申请号
DE1936H149304D
申请日期
1936.10.28
申请人
KARL HESSMANN
发明人
分类号
E21D15/18
主分类号
E21D15/18
代理机构
代理人
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