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发明名称
Verbindungsmuffe fuer die unter Zwischenschaltung einer nachgiebigen Einlage zusammenstossenden Ausbauglieder eines eisernen Grubenausbaues
摘要
申请公布号
DE547528(C)
申请公布日期
1932.04.04
申请号
DE1929D058313D
申请日期
1929.05.04
申请人
ADOLF DIETZE
发明人
分类号
E21D11/18
主分类号
E21D11/18
代理机构
代理人
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地址
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