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发明名称
SIGNAL METHOD IN COMMUNICATION NETWORK
摘要
申请公布号
JPH05103105(A)
申请公布日期
1993.04.23
申请号
JP19920078800
申请日期
1992.03.02
申请人
AMERICAN TELEPH & TELEGR CO <ATT>
发明人
DEYUAN OO BOUKAA
分类号
H04M7/00;H04M3/40;H04Q1/30;H04Q3/42
主分类号
H04M7/00
代理机构
代理人
主权项
地址
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