Interurban telephone system,申请号US19430504084-传众专利搜索

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发明名称	Interurban telephone system
摘要
申请公布号	US2423123(A)	申请公布日期	1947.07.01
申请号	US19430504084	申请日期	1943.09.27
申请人	INTERNATIONAL STANDARD ELECTRIC CORPORATION	发明人	STEWART CLAUDIUS F.;PENET GABRIEL J. M.
分类号	H04Q3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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