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经营范围
发明名称
I INTERFACE SUBSCRIBER COMMUNICATION SYSTEM
摘要
申请公布号
JPH03181293(A)
申请公布日期
1991.08.07
申请号
JP19890318938
申请日期
1989.12.11
申请人
HITACHI LTD
发明人
KURISU KAZUKI;SATO HIDEHIRO
分类号
H04Q5/00;H04J3/00;H04L12/40;H04M11/00
主分类号
H04Q5/00
代理机构
代理人
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