Telephone message unit recording system,申请号US19610125308-传众专利搜索

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发明名称	Telephone message unit recording system
摘要
申请公布号	US3156772(A)	申请公布日期	1964.11.10
申请号	US19610125308	申请日期	1961.05.29
申请人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY	发明人	FREERICKS LAMBERT;KUKASCH HERBERT L.;LUZON THOMAS B.
分类号	H04M15/18	主分类号	H04M15/18
代理机构		代理人
主权项
地址

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