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经营范围
发明名称
METHOD OF OVALIZING AND SMOOTHENING DIAMOND GRAIN
摘要
申请公布号
PL153303(B1)
申请公布日期
1991.03.29
申请号
PL19870269871
申请日期
1987.12.31
申请人
发明人
分类号
B24B31/14;B24D;B24D3/10;(IPC1-7):B24D3/10
主分类号
B24B31/14
代理机构
代理人
主权项
地址
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