Improvements in and relating to magnetic sound recording or reproducing heads,申请号GB19500009350-传众专利搜索

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发明名称	Improvements in and relating to magnetic sound recording or reproducing heads
摘要
申请公布号	GB675136(A)	申请公布日期	1952.07.02
申请号	GB19500009350	申请日期	1950.04.17
申请人	LES PROCEDES MAGNETIQUES FRANCAIS	发明人	LEMONNE JACQUES RENE
分类号	G11B5/127	主分类号	G11B5/127
代理机构		代理人
主权项
地址

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