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发明名称
Nachgiebiger Grubenstempel
摘要
申请公布号
DE934286(C)
申请公布日期
1955.10.20
申请号
DE1954K021542
申请日期
1954.03.20
申请人
KLEIN GEORG
发明人
KLEIN GEORG
分类号
E21D15/32
主分类号
E21D15/32
代理机构
代理人
主权项
地址
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