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发明名称
摘要
申请公布号
JPH02123396(U)
申请公布日期
1990.10.11
申请号
JP19890033793U
申请日期
1989.03.24
申请人
发明人
分类号
B24B19/20;B30B15/02;(IPC1-7):B30B15/02
主分类号
B24B19/20
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代理人
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