Calling line and party identification in automatic telephony,申请号US19470749827-传众专利搜索

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发明名称	Calling line and party identification in automatic telephony
摘要
申请公布号	US2490441(A)	申请公布日期	1949.12.06
申请号	US19470749827	申请日期	1947.05.22
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	JR. AMOS E. JOEL,
分类号	H04M15/08	主分类号	H04M15/08
代理机构		代理人
主权项
地址

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