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发明名称
Thermionic valve holder
摘要
申请公布号
US1907992(A)
申请公布日期
1933.05.09
申请号
US19280306879
申请日期
1928.09.19
申请人
RADIO CORPORATION OF AMERICA
发明人
MATHIEU GASTON ADELIN;SMITH SIDNEY BERTRAM
分类号
H01J5/50
主分类号
H01J5/50
代理机构
代理人
主权项
地址
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