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发明名称
摘要
申请公布号
JPH0336759(U)
申请公布日期
1991.04.10
申请号
JP19890094971U
申请日期
1989.08.11
申请人
发明人
分类号
B24B27/00;B24B29/00;(IPC1-7):B24B27/00
主分类号
B24B27/00
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代理人
主权项
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