Mécanisme d'avancement du film pour appareil photographique,申请号FRD830509-传众专利搜索

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发明名称	Mécanisme d'avancement du film pour appareil photographique
摘要
申请公布号	FR830509(A)	申请公布日期	1938.08.02
申请号	FRD830509	申请日期	1937.12.07
申请人	VALSTS ELEKTROTECHNISKA FABRIKA	发明人
分类号	G03B17/30	主分类号	G03B17/30
代理机构		代理人
主权项
地址

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