Perfectionnements apportés aux filtres,申请号FRD998900-传众专利搜索

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发明名称	Perfectionnements apportés aux filtres
摘要
申请公布号	FR998900(A)	申请公布日期	1952.01.24
申请号	FRD998900	申请日期	1949.11.03
申请人		发明人	VILLAROYA ENRIQUE BERRENS
分类号	B01D29/00	主分类号	B01D29/00
代理机构		代理人
主权项
地址

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