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发明名称
Cathode-ray tube focusing system
摘要
申请公布号
US2571306(A)
申请公布日期
1951.10.16
申请号
US19470725459
申请日期
1947.01.31
申请人
THE RAULAND CORPORATION
发明人
SZEGHO CONSTANTIN S.
分类号
H04N3/26
主分类号
H04N3/26
代理机构
代理人
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