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经营范围
发明名称
Projection tube with electrically movable target electrode
摘要
申请公布号
US2692346(A)
申请公布日期
1954.10.19
申请号
US19530352647
申请日期
1953.05.04
申请人
VICTOR TRAD
发明人
TRAD VICTOR
分类号
H01J29/89
主分类号
H01J29/89
代理机构
代理人
主权项
地址
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