TELEPHONE ANSWERING AND RECORDING DEVICES,申请号CAD537992-传众专利搜索

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发明名称	TELEPHONE ANSWERING AND RECORDING DEVICES
摘要
申请公布号	CA537992(A)	申请公布日期	1957.03.12
申请号	CAD537992	申请日期
申请人	AUTOMATIC PHONE RECORDER CO. LTD.	发明人	JOHN G. FONTAINE;ALLAN D. MCLEAN
分类号		主分类号
代理机构		代理人
主权项
地址

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