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发明名称
Electronic tube
摘要
申请公布号
US2480608(A)
申请公布日期
1949.08.30
申请号
US19460643917
申请日期
1946.01.28
申请人
HIVAC LIMITED
发明人
RANGABE ALEXANDER R.
分类号
H01J19/30;H01J19/42
主分类号
H01J19/30
代理机构
代理人
主权项
地址
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