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发明名称
Thermionic tube
摘要
申请公布号
US1995702(A)
申请公布日期
1935.03.26
申请号
US19320615790
申请日期
1932.06.07
申请人
PATENT ENGINEERING CORPORATION
发明人
CAPICOTTO JAMES V.
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
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