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发明名称
摘要
申请公布号
JPS4827589(A)
申请公布日期
1973.04.11
申请号
JP19710057387
申请日期
1971.07.29
申请人
发明人
分类号
H01J61/36;H01K1/46
主分类号
H01J61/36
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