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发明名称
Electronic tubes for use as backward wave oscillators
摘要
申请公布号
US2949563(A)
申请公布日期
1960.08.16
申请号
US19570679734
申请日期
1957.08.22
申请人
THE GENERAL ELECTRIC COMPANY LIMITED
发明人
WILLSHAW WILLIAM ERNEST
分类号
H01J25/46
主分类号
H01J25/46
代理机构
代理人
主权项
地址
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