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经营范围
发明名称
Improvements in and relating to rectifier units and rectifier valves for such units
摘要
申请公布号
GB415014(A)
申请公布日期
1934.08.16
申请号
GB19320031922
申请日期
1932.11.11
申请人
BERNHARD ERBER;ALFRED SCHWITZER
发明人
分类号
H01J21/20
主分类号
H01J21/20
代理机构
代理人
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