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经营范围
发明名称
TDM LOOP COMMUNICATION SYSTEMS
摘要
申请公布号
GB2054324(B)
申请公布日期
1984.03.21
申请号
GB19800016750
申请日期
1980.05.21
申请人
ROLM CORP
发明人
分类号
H04Q3/60;H04Q11/04;(IPC1-7):H04M7/00
主分类号
H04Q3/60
代理机构
代理人
主权项
地址
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