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发明名称
DATA TRANSMISSION SYSTEM FOR SUBSCRIBER LOOP SYSTEM
摘要
申请公布号
KR1019880001981(B1)
申请公布日期
1988.10.08
申请号
KR1019830000183
申请日期
1983.01.19
申请人
发明人
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主分类号
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代理人
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