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发明名称
3-WIRE CENTRAL OFFICE WIRE CONNECTING CIRCUIT OF PRIVATE SWITCH
摘要
申请公布号
KR1019950002582(B1)
申请公布日期
1995.03.23
申请号
KR1019920026825
申请日期
1990.07.28
申请人
发明人
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主分类号
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