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发明名称
IMPROVEMENTS IN OR RELATING TO AIR-EXHAUST VENTILATORS
摘要
申请公布号
GB1248920(A)
申请公布日期
1971.10.06
申请号
GB19680047901
申请日期
1968.10.09
申请人
GLENT & CO. A/S.
发明人
分类号
F24F7/013;F24F13/00;F24F13/10;F24F13/16
主分类号
F24F7/013
代理机构
代理人
主权项
地址
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