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发明名称
VOICE SERVICE DEVICE OF FULL ELECTRONIC SWITCHING SYSTEM
摘要
申请公布号
KR1019970002355(B1)
申请公布日期
1997.03.03
申请号
KR1019940014903
申请日期
1994.06.27
申请人
发明人
分类号
主分类号
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代理人
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