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发明名称
LUMINESCENT MATERIAL
摘要
申请公布号
CA382509(A)
申请公布日期
1939.07.04
申请号
CAD382509
申请日期
申请人
RADIO CORPORATION OF AMERICA
发明人
HUMBOLDT W. LEVERENZ
分类号
主分类号
代理机构
代理人
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