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发明名称
ISDN EXCHANGE SYSTEM
摘要
申请公布号
JPH04223800(A)
申请公布日期
1992.08.13
申请号
JP19900406662
申请日期
1990.12.26
申请人
OKI ELECTRIC IND CO LTD
发明人
ABE MINORU
分类号
H04Q11/04
主分类号
H04Q11/04
代理机构
代理人
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地址
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