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发明名称
摘要
申请公布号
JPH02126748(U)
申请公布日期
1990.10.18
申请号
JP19890033792U
申请日期
1989.03.24
申请人
发明人
分类号
B24B9/00;B24B29/00;(IPC1-7):B24B29/00
主分类号
B24B9/00
代理机构
代理人
主权项
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