Perfectionnements aux appareils photographiques,申请号FRD1064773-传众专利搜索

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发明名称	Perfectionnements aux appareils photographiques
摘要
申请公布号	FR1064773(A)	申请公布日期	1954.05.18
申请号	FRD1064773	申请日期	1952.08.05
申请人		发明人	ROYER RENE
分类号	G03B19/04	主分类号	G03B19/04
代理机构		代理人
主权项
地址

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