Perfectionnement aux appareils automatiques d'audition de disques phonographiques,申请号FRD1073712-传众专利搜索

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发明名称	Perfectionnement aux appareils automatiques d'audition de disques phonographiques
摘要
申请公布号	FR1073712(A)	申请公布日期	1954.09.28
申请号	FRD1073712	申请日期	1953.03.23
申请人		发明人	STAAR MARCEL
分类号	G07F17/30	主分类号	G07F17/30
代理机构		代理人
主权项
地址

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