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发明名称
ABRASIVES PRODUKT.
摘要
申请公布号
DE3872200(D1)
申请公布日期
1992.07.23
申请号
DE19883872200
申请日期
1988.12.21
申请人
DE BEERS IND DIAMOND
发明人
PHAAL CORNELIS
分类号
B24D3/00;B23B27/14;B23P5/00;B23P15/28;B24D99/00;B28D1/18;E21B10/56;E21B10/573;(IPC1-7):E21B10/46;B24D17/00;B28D1/00;E21C35/18
主分类号
B24D3/00
代理机构
代理人
主权项
地址
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