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发明名称
摘要
申请公布号
JPS5844807(U)
申请公布日期
1983.03.25
申请号
JP19810139072U
申请日期
1981.09.19
申请人
发明人
分类号
H01F7/20;H01F7/00;H01J9/44;H04N17/04;(IPC1-7):H01F7/00;H04N5/13
主分类号
H01F7/20
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代理人
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