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经营范围
发明名称
ABRASIVE BODIES
摘要
申请公布号
GB1544582(A)
申请公布日期
1979.04.19
申请号
GB19770032791
申请日期
1977.08.04
申请人
DE BEERS IND DIAMOND DIVISION LTD
发明人
分类号
B24D99/00;(IPC1-7):B24D3/06;B24D5/06
主分类号
B24D99/00
代理机构
代理人
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地址
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