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经营范围
发明名称
LINE SWITCHING DEVICE
摘要
申请公布号
JPS6462053(A)
申请公布日期
1989.03.08
申请号
JP19870218914
申请日期
1987.09.01
申请人
FUJITSU LTD
发明人
TANAKA MASASHI;WAKABAYASHI TAKASHI
分类号
H04L25/49;H04L25/52
主分类号
H04L25/49
代理机构
代理人
主权项
地址
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