Ventilated ceiling with valve means,申请号US19660548746-传众专利搜索

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发明名称	Ventilated ceiling with valve means
摘要
申请公布号	US3366029(A)	申请公布日期	1968.01.30
申请号	US19660548746	申请日期	1966.05.09
申请人	HUNTER DOUGLAS INTERNATIONAL LTD.	发明人	REYNDERS WILLEM
分类号	E04B9/02;E04B9/12;F24F13/072	主分类号	E04B9/02
代理机构		代理人
主权项
地址

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