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发明名称
摘要
申请公布号
JPS648621(U)
申请公布日期
1989.01.18
申请号
JP19870102770U
申请日期
1987.07.06
申请人
发明人
分类号
G01B7/00;G01D5/245;G11B5/23;G11B5/245;G11B5/265;(IPC1-7):G01D5/245
主分类号
G01B7/00
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代理人
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