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经营范围
发明名称
Eiserner Grubenausbau
摘要
申请公布号
DE743981(C)
申请公布日期
1944.01.06
申请号
DE1939M144547D
申请日期
1939.03.17
申请人
F. W. MOLL SOEHNE
发明人
分类号
E21D11/22
主分类号
E21D11/22
代理机构
代理人
主权项
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