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发明名称
Transmission line break detecting circuit
摘要
申请公布号
US3288929(A)
申请公布日期
1966.11.29
申请号
US19650465610
申请日期
1965.06.21
申请人
THE BELL TELEPHONE COMPANY OF CANADA
发明人
HUTCHINSON DAVID NORMAN
分类号
H04L12/26
主分类号
H04L12/26
代理机构
代理人
主权项
地址
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