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经营范围
发明名称
An electrical display device
摘要
申请公布号
GB839003(A)
申请公布日期
1960.06.29
申请号
GB19560014634
申请日期
1956.05.10
申请人
RADIO CORPORATION OF AMERICA
发明人
分类号
G11C11/22;G11C19/06
主分类号
G11C11/22
代理机构
代理人
主权项
地址
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