Recording-completing cord and trunk circuits,申请号US19480067868-传众专利搜索

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发明名称	Recording-completing cord and trunk circuits
摘要
申请公布号	US2636944(A)	申请公布日期	1953.04.28
申请号	US19480067868	申请日期	1948.12.29
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	BUCHANAN RUSSELL B.
分类号	H04M5/08	主分类号	H04M5/08
代理机构		代理人
主权项
地址

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