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发明名称
Cathode ray tube system
摘要
申请公布号
US2217758(A)
申请公布日期
1940.10.15
申请号
US19370152353
申请日期
1937.07.07
申请人
GEORGE H. CALLAGHAN;FELIX SPIEGEL;ROBERT LORENZEN
发明人
LORENZEN ROBERT
分类号
H01J29/52
主分类号
H01J29/52
代理机构
代理人
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地址
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