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经营范围
发明名称
RETE DI COMMUTAZIONE MODULARE
摘要
申请公布号
IT1114415(B)
申请公布日期
1986.01.27
申请号
IT19770027703
申请日期
1977.09.20
申请人
IBM CORP
发明人
分类号
H04M3/00;H04Q3/00;(IPC1-7):H04M/
主分类号
H04M3/00
代理机构
代理人
主权项
地址
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