Perfectionnements aux appareils photographiques,申请号FRD765541-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	FR765541(A)	申请公布日期	1934.06.12
申请号	FRD765541	申请日期	1933.03.04
申请人		发明人	NORBERT CORNU, GUSTAVE,
分类号	G03B13/20	主分类号	G03B13/20
代理机构		代理人
主权项
地址

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