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发明名称
CALL MESSAGE RECORDING FOR TELEPHONE SYSTEMS
摘要
申请公布号
CA2092590(A1)
申请公布日期
1993.11.07
申请号
CA19932092590
申请日期
1993.03.26
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
DOHERTY, GERARD P.;LANZILLOTTI, NICHOLAS J.;PAULUS, CONRAD J.
分类号
H04M3/00;H04M15/00;H04M15/16;H04Q3/00;(IPC1-7):H04M15/10
主分类号
H04M3/00
代理机构
代理人
主权项
地址
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