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经营范围
发明名称
MATIERES ABRASIVES
摘要
申请公布号
BE870413(A1)
申请公布日期
1979.03.12
申请号
BE19780190428
申请日期
1978.09.12
申请人
DE BEERS INDUSTRIAL DIAMOND DIVISION (PROPRIETARY) LTD
发明人
分类号
B22F9/02;B24D3/00;B24D3/28;C01B31/06;C02F1/68;C04B35/52;C09C1/68;C09K3/14;C22C26/00
主分类号
B22F9/02
代理机构
代理人
主权项
地址
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