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发明名称
Electrical circuits for communication networks
摘要
申请公布号
US2972683(A)
申请公布日期
1961.02.21
申请号
US19570673861
申请日期
1957.07.24
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
LUNNEY RAYMOND E.
分类号
H04Q3/52
主分类号
H04Q3/52
代理机构
代理人
主权项
地址
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