SOUND TRANSMITTER AND RECEIVER,申请号CAD449544-传众专利搜索

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发明名称	SOUND TRANSMITTER AND RECEIVER
摘要
申请公布号	CA449544(A)	申请公布日期	1948.06.29
申请号	CAD449544	申请日期
申请人	SUBMARINE SIGNAL COMPANY;SUBMARINE SIGNAL COMPANY	发明人	HUGO BENIOFF
分类号		主分类号
代理机构		代理人
主权项
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