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发明名称
Schachtausbau
摘要
申请公布号
DE540132(C)
申请公布日期
1931.12.07
申请号
DE1926M097219D
申请日期
1926.12.01
申请人
DR. GUSTAV MARBACH;DR. KARL OBERSTE-BRINK
发明人
分类号
E21D5/10
主分类号
E21D5/10
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