Cadre rationnel pour filtres mécaniques,申请号FRD755825-传众专利搜索

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发明名称	Cadre rationnel pour filtres mécaniques
摘要
申请公布号	FR755825(A)	申请公布日期	1933.11.30
申请号	FRD755825	申请日期	1933.05.20
申请人		发明人	DOLIGNON LOUIS-PIERRE
分类号	B01D29/39	主分类号	B01D29/39
代理机构		代理人
主权项
地址

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