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发明名称
Electronic tube
摘要
申请公布号
GB447039(A)
申请公布日期
1936.05.11
申请号
GB19340022996
申请日期
1934.08.09
申请人
RADIOAKTIENGESELLSCHAFT D.S. LOEWE
发明人
分类号
H01J29/94;H01J31/04;H03B13/00
主分类号
H01J29/94
代理机构
代理人
主权项
地址
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