Access to Unsubscribed Features,申请号CA19952148021-传众专利搜索

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发明名称	Access to Unsubscribed Features
摘要
申请公布号	CA2148021(A1)	申请公布日期	1995.12.11
申请号	CA19952148021	申请日期	1995.04.27
申请人	AT&T CORP.	发明人	ANDRUSKA, DONALD LEE;MAJETI, VENKATA CHALAPATHI
分类号	H04M3/42;H04M3/56;H04Q3/00;H04Q3/545;(IPC1-7):H04M3/42	主分类号	H04M3/42
代理机构		代理人
主权项
地址

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