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经营范围
发明名称
Photoemissive device
摘要
申请公布号
GB1023257(A)
申请公布日期
1966.03.23
申请号
GB19640035313
申请日期
1964.08.28
申请人
THE RAULAND CORPORATION
发明人
分类号
H01J1/34
主分类号
H01J1/34
代理机构
代理人
主权项
地址
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