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发明名称
Electron discharge device circuit arrangement
摘要
申请公布号
US1877128(A)
申请公布日期
1932.09.13
申请号
US19290376181
申请日期
1929.07.05
申请人
WIRED RADIO, INC.
发明人
OLSON JOHN
分类号
H04B15/00
主分类号
H04B15/00
代理机构
代理人
主权项
地址
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