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发明名称
Repeater circuits
摘要
申请公布号
US1808915(A)
申请公布日期
1931.06.09
申请号
US19260142566
申请日期
1926.10.19
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BJORNSON BJORN G.
分类号
H04B3/20;H04L25/08
主分类号
H04B3/20
代理机构
代理人
主权项
地址
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