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发明名称
SYSTEM SWITCHING SYSTEM BY NETWORK MANAGING CENTER
摘要
申请公布号
JPH01228237(A)
申请公布日期
1989.09.12
申请号
JP19880053492
申请日期
1988.03.09
申请人
HITACHI LTD
发明人
SATOMI SHIGEKI;ONO NAOO
分类号
主分类号
代理机构
代理人
主权项
地址
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