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发明名称
ISDN CONNECTION DEVICE
摘要
申请公布号
JPH04312040(A)
申请公布日期
1992.11.04
申请号
JP19910078811
申请日期
1991.04.11
申请人
HITACHI LTD
发明人
TOYAMA TOSHIAKI;KANAI HIROSHI;MOTOHASHI TOMOO
分类号
G06F13/00;H04L1/22;H04L12/00;H04L29/14
主分类号
G06F13/00
代理机构
代理人
主权项
地址
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