Automatic toll trunking system,申请号US19510251961-传众专利搜索

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发明名称	Automatic toll trunking system
摘要
申请公布号	US2685617(A)	申请公布日期	1954.08.03
申请号	US19510251961	申请日期	1951.10.18
申请人	STROMBERG-CARLSON COMPANY	发明人	KESSLER FRANK;PHARIS WILLIAM W.
分类号	H04M3/60	主分类号	H04M3/60
代理机构		代理人
主权项
地址

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