Method and apparatus for providing a personal locator, access control and asset tracking service using an in-building telephone network,申请号EP19930304446-传众专利搜索

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发明名称	Method and apparatus for providing a personal locator, access control and asset tracking service using an in-building telephone network
摘要
申请公布号	EP0578374(B1)	申请公布日期	1998.12.02
申请号	EP19930304446	申请日期	1993.06.08
申请人	NORTEL NETWORKS CORPORATION	发明人	MUFTI, SOHALE AZIZ;YIP, ADRIAN MEN-GEE;SAMUEL, ROBERT GEORGE;SOONG, PETER PUI KWOK;WAKIM, MICHAEL JAMIL
分类号	H04Q7/34;G07C9/00;G08B3/10;H04M3/42;H04M3/54;H04M11/02;H04Q3/62;H04Q7/38;(IPC1-7):H04M11/00	主分类号	H04Q7/34
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