Perfectionnements aux variateurs de lumière pour machine à tirer les films cinématographiques,申请号FRD978567-传众专利搜索

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发明名称	Perfectionnements aux variateurs de lumière pour machine à tirer les films cinématographiques
摘要
申请公布号	FR978567(A)	申请公布日期	1951.04.16
申请号	FRD978567	申请日期	1948.11.19
申请人		发明人	JACUBOWITZ GEORGES
分类号	G03B27/16	主分类号	G03B27/16
代理机构		代理人
主权项
地址

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