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发明名称
摘要
申请公布号
FR2230073(B1)
申请公布日期
1978.08.04
申请号
FR19740015899
申请日期
1974.05.08
申请人
HEIMANN GMBH
发明人
分类号
H01J29/45;(IPC1-7):H01J29/45;H01J31/46
主分类号
H01J29/45
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代理人
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