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发明名称
ISDN EXCHANGE
摘要
申请公布号
JPS6432563(A)
申请公布日期
1989.02.02
申请号
JP19870186600
申请日期
1987.07.28
申请人
OKI ELECTRIC IND CO LTD
发明人
YOKOYAMA KAZUHIKO
分类号
H04M3/00;H04M7/12
主分类号
H04M3/00
代理机构
代理人
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