Multioffice interlocked signaling telephone system,申请号US19580729351-传众专利搜索

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发明名称	Multioffice interlocked signaling telephone system
摘要
申请公布号	US2897283(A)	申请公布日期	1959.07.28
申请号	US19580729351	申请日期	1958.04.18
申请人	GENERAL DYNAMICS CORPORATION	发明人	PEARCE JAMES G.;TUBINIS MATTHEW P.
分类号	H04Q11/04	主分类号	H04Q11/04
代理机构		代理人
主权项
地址

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