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发明名称
Method and Apparatus for Facilitating the Making of Collect Calls
摘要
申请公布号
CA2121756(A1)
申请公布日期
1994.11.28
申请号
CA19942121756
申请日期
1994.04.20
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
BASH, STEPHAN R.;DI RUBBO, SALVATORE R. L.;GIBILISCO, PAUL F.;MANSDOERFER, RICHARD L., JR.
分类号
H04M3/42;H04M3/51;H04M3/533;H04M11/00;H04M15/08;(IPC1-7):H04M3/48
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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