Glissière courbe de lecteur photo-électrique de sons,申请号FRD729986-传众专利搜索

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发明名称	Glissière courbe de lecteur photo-électrique de sons
摘要
申请公布号	FR729986(A)	申请公布日期	1932.08.04
申请号	FRD729986	申请日期	1931.04.01
申请人	PATHE-CINEMA (ANCIENS ETABLISSEMENTS PATHE FRERES)	发明人
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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