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经营范围
发明名称
THERMIONIC VALVE CIRCUIT
摘要
申请公布号
CA457082(A)
申请公布日期
1949.05.31
申请号
CAD457082
申请日期
申请人
INTERNATIONAL STANDARD ELECTRIC CORPORATION
发明人
CHARLES MALTON LEGRICE EYRE;JOHN OWEN GILDERDALE
分类号
主分类号
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