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经营范围
发明名称
Keilschloss fuer zweiteilige eiserne Grubenstempel
摘要
申请公布号
DE749491(C)
申请公布日期
1944.11.23
申请号
DE1940T054113D
申请日期
1940.08.14
申请人
发明人
分类号
E21D15/28
主分类号
E21D15/28
代理机构
代理人
主权项
地址
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