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发明名称
SWITCHING MATRIX
摘要
申请公布号
GB2046057(A)
申请公布日期
1980.11.05
申请号
GB19790027851
申请日期
1979.08.10
申请人
MITEL CORP
发明人
分类号
H01H67/00;H04Q3/00;(IPC1-7):H04Q1/16
主分类号
H01H67/00
代理机构
代理人
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