Teletypewriter switching system pay station,申请号US19410392682-传众专利搜索

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发明名称	Teletypewriter switching system pay station
摘要
申请公布号	US2345851(A)	申请公布日期	1944.04.04
申请号	US19410392682	申请日期	1941.05.09
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	LANG WILMARTH Y.;SINGER FRED J.
分类号	H04L12/02;H04L25/04	主分类号	H04L12/02
代理机构		代理人
主权项
地址

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