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发明名称
CHANGEOVER SYSTEM FOR TRANSMISSION LINE
摘要
申请公布号
JPH0575636(A)
申请公布日期
1993.03.26
申请号
JP19910257208
申请日期
1991.09.10
申请人
NEC CORP
发明人
KUROSAWA KATSUHIKO
分类号
H04L12/42
主分类号
H04L12/42
代理机构
代理人
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地址
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