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经营范围
发明名称
REPEATING SYSTEM FOR BRIDGE
摘要
申请公布号
JPH04111555(A)
申请公布日期
1992.04.13
申请号
JP19900229764
申请日期
1990.08.30
申请人
NEC CORP
发明人
SAKAMOTO HIDENORI
分类号
H04L12/28
主分类号
H04L12/28
代理机构
代理人
主权项
地址
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