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发明名称
Eiserner Grubenausbau mit Profileisen als Kappeneisen
摘要
申请公布号
DE802510(C)
申请公布日期
1951.02.12
申请号
DE1949P054354
申请日期
1949.09.09
申请人
GUTEHOFFNUNGSHUETTE OBERHAUSEN AKT.-GES.
发明人
JACOBI OSKAR DR.-ING.
分类号
E21D17/01
主分类号
E21D17/01
代理机构
代理人
主权项
地址
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