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发明名称
Rinnenprofil fuer den Grubenausbau
摘要
申请公布号
DE918203(C)
申请公布日期
1954.09.20
申请号
DE1943G001069D
申请日期
1943.09.25
申请人
DIPL.-ING. KARL MARIA GROETSCHEL
发明人
GROETSCHEL DIPL.-ING. KARL MARIA
分类号
E21D11/20
主分类号
E21D11/20
代理机构
代理人
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