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发明名称
Verfahren zur Herstellung von Betondecken mit Rahmenzellen zwischen eisernen Traegern
摘要
申请公布号
DE509448(C)
申请公布日期
1930.10.09
申请号
DENDATP060893D
申请日期
申请人
HANS POHLMANN
发明人
分类号
E04B5/29
主分类号
E04B5/29
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代理人
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