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经营范围
发明名称
LUMINESCENT SCREEN
摘要
申请公布号
CA488021(A)
申请公布日期
1952.11.11
申请号
CAD488021
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
FREDERICK H. NICOLL
分类号
主分类号
代理机构
代理人
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地址
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