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发明名称
Belueftungs- und Entlueftungselement fuer Daecher
摘要
申请公布号
DE1918934(A1)
申请公布日期
1970.12.03
申请号
DE19691918934
申请日期
1969.04.15
申请人
BRAAS & CO GMBH
发明人
分类号
E04D1/30;E04D13/17
主分类号
E04D1/30
代理机构
代理人
主权项
地址
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