MEANS FOR CONTROLLING TELEPHONE ANSWERING DEVICES,申请号CAD515156-传众专利搜索

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发明名称	MEANS FOR CONTROLLING TELEPHONE ANSWERING DEVICES
摘要
申请公布号	CA515156(A)	申请公布日期	1955.08.02
申请号	CAD515156	申请日期
申请人	HARRY R. VAN DEVENTER	发明人	HARRY R. VAN DEVENTER
分类号		主分类号
代理机构		代理人
主权项
地址

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