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发明名称
ISDN LINE CONTROL SYSTEM
摘要
申请公布号
JPH0451755(A)
申请公布日期
1992.02.20
申请号
JP19900159965
申请日期
1990.06.20
申请人
FUJITSU LTD
发明人
UEHARA TAKESHI;KISHIDA TOSHIHIDE;NABETA MASASHI
分类号
H04Q3/545;H04L12/02;H04M3/00;H04M7/06
主分类号
H04Q3/545
代理机构
代理人
主权项
地址
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