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发明名称
摘要
申请公布号
FR2159327(B1)
申请公布日期
1978.02.10
申请号
FR19720039369
申请日期
1972.11.07
申请人
HITACHI LTD
发明人
分类号
H01J29/07;H01J29/81;H01J31/20;(IPC1-7):H01J31/00;H04N9/00
主分类号
H01J29/07
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