SOUND RECORDING AND REPRODUCING SYSTEM,申请号CAD307334-传众专利搜索

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发明名称	SOUND RECORDING AND REPRODUCING SYSTEM
摘要
申请公布号	CA307334(A)	申请公布日期	1931.01.06
申请号	CAD307334	申请日期
申请人	JOHN NEALE	发明人	JOHN NEALE
分类号		主分类号
代理机构		代理人
主权项
地址

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