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发明名称
Steineisendecke, bei der zwischen je zwei Hohlsteinen Platten angeordnet sind, die deren Kanaele abschliessen
摘要
申请公布号
DE521062(C)
申请公布日期
1931.03.17
申请号
DENDATR077995D
申请日期
申请人
AUGUST ROESELER
发明人
分类号
E04B5/19
主分类号
E04B5/19
代理机构
代理人
主权项
地址
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