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发明名称
Thermionic tube test apparatus
摘要
申请公布号
US2399859(A)
申请公布日期
1946.05.07
申请号
US19440523736
申请日期
1944.02.24
申请人
RADIO CORPORATION
发明人
CRAWLEY JAMES B.
分类号
G01R31/25
主分类号
G01R31/25
代理机构
代理人
主权项
地址
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