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发明名称
Electron tube amplification system
摘要
申请公布号
US2138891(A)
申请公布日期
1938.12.06
申请号
US19340745460
申请日期
1934.09.25
申请人
WILLIAM H. WOODIN, JR.
发明人
SOLLER WALTER
分类号
H03F3/22
主分类号
H03F3/22
代理机构
代理人
主权项
地址
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