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发明名称
BILDVERSTAERKERROEHRENEINRICHTUNG
摘要
申请公布号
DE2452850(B2)
申请公布日期
1977.11.03
申请号
DE19742452850
申请日期
1974.11.07
申请人
发明人
分类号
H01J31/50;(IPC1-7):H01J31/50
主分类号
H01J31/50
代理机构
代理人
主权项
地址
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