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经营范围
发明名称
Improvements in cathode ray beam information storage tubes
摘要
申请公布号
GB767627(A)
申请公布日期
1957.02.06
申请号
GB19540034419
申请日期
1954.11.26
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
H01J29/58;H01J31/38;H04N9/28
主分类号
H01J29/58
代理机构
代理人
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地址
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