Improvements in receptacles for sound recording discs,申请号GB19440012640-传众专利搜索

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发明名称	Improvements in receptacles for sound recording discs
摘要
申请公布号	GB581219(A)	申请公布日期	1946.10.04
申请号	GB19440012640	申请日期	1944.07.03
申请人	RADIO GRAMOPHONE DEVELOPMENT COMPANY LIMITED;WILLIAM REDSHAW PARKINSON	发明人
分类号	G11B23/03	主分类号	G11B23/03
代理机构		代理人
主权项
地址

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