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发明名称
CHARGING METHOD FOR HOLDING CALL AND ITS SYSTEM
摘要
申请公布号
JPH11168582(A)
申请公布日期
1999.06.22
申请号
JP19970335558
申请日期
1997.12.05
申请人
NEC CORP
发明人
MATSUMOTO MITSUMASA
分类号
H04M3/42;H04M15/12;(IPC1-7):H04M15/12
主分类号
H04M3/42
代理机构
代理人
主权项
地址
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