Improvements in or relating to automatic ventilating air filters,申请号GB19550016588-传众专利搜索

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发明名称	Improvements in or relating to automatic ventilating air filters
摘要
申请公布号	GB773348(A)	申请公布日期	1957.04.24
申请号	GB19550016588	申请日期	1955.06.09
申请人	AMERICAN AIR FILTER COMPANY, INC.	发明人
分类号	B01D39/14;B01D46/18;F24F13/28	主分类号	B01D39/14
代理机构		代理人
主权项
地址

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