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经营范围
发明名称
Grubenstempel aus Metall
摘要
申请公布号
DE851787(C)
申请公布日期
1952.10.09
申请号
DE1950R003188
申请日期
1950.07.28
申请人
RINGFEDER G.M.B.H.
发明人
KREISSIG ERNST;EDELMEIER HANS;SCHAEFER WILHELM DIPL.-ING.;BEIER WILHELM
分类号
E21D15/22;E21D15/52;E21D15/54
主分类号
E21D15/22
代理机构
代理人
主权项
地址
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