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发明名称
Aperture mask coating to prevent cathode poisoning
摘要
申请公布号
US2886730(A)
申请公布日期
1959.05.12
申请号
US19570642074
申请日期
1957.02.25
申请人
CORNING GLASS WORKS
发明人
SHELDON JOHN L.
分类号
D01H7/60;H01J29/07;H01J29/34
主分类号
D01H7/60
代理机构
代理人
主权项
地址
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