Perfectionnements aux appareils photographiques,申请号FRD699606-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	FR699606(A)	申请公布日期	1931.02.18
申请号	FRD699606	申请日期	1930.07.11
申请人		发明人	VARNEY LUCIUS EVERETT
分类号	G03B33/00	主分类号	G03B33/00
代理机构		代理人
主权项
地址

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