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发明名称
摘要
申请公布号
JPH032617(U)
申请公布日期
1991.01.11
申请号
JP19890063568U
申请日期
1989.05.30
申请人
发明人
分类号
G01D5/22;H01F30/00;(IPC1-7):H01F31/00
主分类号
G01D5/22
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