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发明名称
Tunable high-frequency circuits
摘要
申请公布号
US2506955(A)
申请公布日期
1950.05.09
申请号
US19450593627
申请日期
1945.05.14
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
FRACASSI RENATO D.
分类号
H01J23/213
主分类号
H01J23/213
代理机构
代理人
主权项
地址
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