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发明名称
VENTILATING ELEMENT
摘要
申请公布号
DE3163880(D1)
申请公布日期
1984.07.05
申请号
DE19813163880
申请日期
1981.07.30
申请人
MAGE GEHRING GMBH
发明人
GEHRING, MANFRED
分类号
E04D13/00;(IPC1-7):E04D13/00
主分类号
E04D13/00
代理机构
代理人
主权项
地址
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