Electronic switching telephone system,申请号US19580760905-传众专利搜索

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发明名称	Electronic switching telephone system
摘要
申请公布号	US3041403(A)	申请公布日期	1962.06.26
申请号	US19580760905	申请日期	1958.09.15
申请人	GENERAL DYNAMICS CORPORATION	发明人	FRANKEL THEODORE
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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