Party line lock-out circuit,申请号US19560574718-传众专利搜索

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发明名称	Party line lock-out circuit
摘要
申请公布号	US2873316(A)	申请公布日期	1959.02.10
申请号	US19560574718	申请日期	1956.03.29
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	POWER JAMES R.
分类号	H04Q5/00	主分类号	H04Q5/00
代理机构		代理人
主权项
地址

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