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发明名称
SYSTEM FOR REPORTING RESPONSE SERVICE IMPOSSIBILITY TO SERVICE REQUESTING SUBSCRIBER
摘要
申请公布号
JPH06350709(A)
申请公布日期
1994.12.22
申请号
JP19930142219
申请日期
1993.06.14
申请人
HITACHI LTD
发明人
AKITA TOSHIAKI
分类号
H04M3/22;H04M3/42;H04M3/493;H04M3/527;H04M11/08;H04Q3/545;(IPC1-7):H04M3/42
主分类号
H04M3/22
代理机构
代理人
主权项
地址
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