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发明名称
Improvements in or relating to cathode ray light control devices
摘要
申请公布号
GB598802(A)
申请公布日期
1948.02.26
申请号
GB19450023353
申请日期
1945.09.11
申请人
WERNER EHRENBERG
发明人
分类号
H04N5/74
主分类号
H04N5/74
代理机构
代理人
主权项
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