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发明名称
Schalldaemmende zweischalige Gebaeudedecke, insbesondere Betondecke
摘要
申请公布号
DE1007984(B)
申请公布日期
1957.05.09
申请号
DE1955W016277
申请日期
1955.03.21
申请人
ALFRED WONSAK
发明人
WONSAK ALFRED
分类号
E04B9/00
主分类号
E04B9/00
代理机构
代理人
主权项
地址
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