SOUND RECORDING APPARATUS,申请号CAD348224-传众专利搜索

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发明名称	SOUND RECORDING APPARATUS
摘要
申请公布号	CA348224(A)	申请公布日期	1935.02.12
申请号	CAD348224	申请日期
申请人	THE WESTERN ELECTRIC COMPANY	发明人	WILLIAM HERRIOTT;WILLIAM ROWETT GOEHNER
分类号		主分类号
代理机构		代理人
主权项
地址

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