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发明名称
HIGH-FREQUENCY ELECTRON TUBES
摘要
申请公布号
CA761573(A)
申请公布日期
1967.06.20
申请号
CAD761573
申请日期
申请人
HITACHI, LTD.
发明人
FUMIO HOSHINO;YOSHIO MURATA
分类号
主分类号
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