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发明名称
GRINGING DEVICE
摘要
申请公布号
PL267959(A1)
申请公布日期
1989.04.03
申请号
PL19870267959
申请日期
1987.09.24
申请人
发明人
分类号
B24B;B24B7/10;B24B21/06;(IPC1-7):B24B/
主分类号
B24B
代理机构
代理人
主权项
地址
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