Dispositif de filtrage pour projecteurs,申请号FRD854701-传众专利搜索

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发明名称	Dispositif de filtrage pour projecteurs
摘要
申请公布号	FR854701(A)	申请公布日期	1940.04.23
申请号	FRD854701	申请日期	1939.05.13
申请人		发明人	DENGLER ALOIS
分类号	F21V3/04;F21V14/00	主分类号	F21V3/04
代理机构		代理人
主权项
地址

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