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发明名称
LOOP COMMUNICATION SYSTEM
摘要
<p>PURPOSE:To make easy for the detection of faulted location by providing the loop folded function in remote stations and to prevent system down by constituting two degeneration loops.</p>
申请公布号
JPS5350608(A)
申请公布日期
1978.05.09
申请号
JP19760124960
申请日期
1976.10.20
申请人
HITACHI LTD
发明人
YAMAMOTO SEIICHIROU
分类号
H04B3/46;H04B1/74
主分类号
H04B3/46
代理机构
代理人
主权项
地址
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