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经营范围
发明名称
Selenium storage tube
摘要
申请公布号
US3111601(A)
申请公布日期
1963.11.19
申请号
US19600029864
申请日期
1960.05.18
申请人
HRB-SINGER, INC.
发明人
JR. JOHN P. WALKER,
分类号
H01J29/39;H01J31/62
主分类号
H01J29/39
代理机构
代理人
主权项
地址
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