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发明名称
Ventilation Device
摘要
申请公布号
GB2012945(A)
申请公布日期
1979.08.01
申请号
GB19790001239
申请日期
1979.01.12
申请人
GRETSCH-UNITAS GMBH
发明人
分类号
E06B5/20;E06B7/00;E06B7/02;F24F7/00;F24F7/04;F24F13/24;(IPC1-7):F24F7/00
主分类号
E06B5/20
代理机构
代理人
主权项
地址
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