Teletypewriter exchange system,申请号US19390307028-传众专利搜索

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发明名称	Teletypewriter exchange system
摘要
申请公布号	US2283410(A)	申请公布日期	1942.05.19
申请号	US19390307028	申请日期	1939.12.01
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	BONORDEN ALLEN R.
分类号	H04L12/04	主分类号	H04L12/04
代理机构		代理人
主权项
地址

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