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发明名称
ABRASIVE COMPACTS
摘要
申请公布号
ZA7004369(B)
申请公布日期
1971.11.24
申请号
ZA19700004369
申请日期
1970.06.25
申请人
DE BEERS CONSOLIDATED MINES LTD
发明人
LEVITT C
分类号
B24D
主分类号
B24D
代理机构
代理人
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地址
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