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发明名称
摘要
申请公布号
JPH02104608(U)
申请公布日期
1990.08.20
申请号
JP19890012175U
申请日期
1989.02.06
申请人
发明人
分类号
H01F38/42;H01F19/04;(IPC1-7):H01F19/04;H04N3/195
主分类号
H01F38/42
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