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发明名称
Selective calling circuits
摘要
申请公布号
US1919046(A)
申请公布日期
1933.07.18
申请号
US19310520259
申请日期
1931.03.05
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
SCRIVEN EDWARD O.
分类号
H04B3/54
主分类号
H04B3/54
代理机构
代理人
主权项
地址
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