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发明名称
SYSTEM SWITCHING CONTROL SYSTEM
摘要
申请公布号
JPH0522412(A)
申请公布日期
1993.01.29
申请号
JP19910176406
申请日期
1991.07.17
申请人
NEC CORP
发明人
MATSUO SHIGE
分类号
H04M3/00;H04M3/22
主分类号
H04M3/00
代理机构
代理人
主权项
地址
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