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经营范围
发明名称
Electrostatic printing tube
摘要
申请公布号
GB942213(A)
申请公布日期
1963.11.20
申请号
GB19610007890
申请日期
1961.03.03
申请人
A. B. DIOK COMPANY
发明人
分类号
H01J31/06
主分类号
H01J31/06
代理机构
代理人
主权项
地址
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