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发明名称
KEY-TONE OUTPUT SYSTEM AND MANAGEMENT METHOD THEREOF
摘要
申请公布号
KR20050054616(A)
申请公布日期
2005.06.10
申请号
KR20030088009
申请日期
2003.12.05
申请人
H. INFORMATION, CO., LTD.;KTFREETEL CO., LTD.
发明人
YANG, SOO HYUN;SUH, HEE WOUNG
分类号
H04B1/40;(IPC1-7):H04B1/40
主分类号
H04B1/40
代理机构
代理人
主权项
地址
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