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发明名称
TRANSFER SYSTEM FOR CALL WAITING SERVICE
摘要
申请公布号
JPH05268353(A)
申请公布日期
1993.10.15
申请号
JP19920064450
申请日期
1992.03.23
申请人
发明人
分类号
H04M3/42;H04M3/54;(IPC1-7):H04M3/42
主分类号
H04M3/42
代理机构
代理人
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