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发明名称
Grondbewerkingsstelsel, en beiteldraagblok daarvoor.
摘要
申请公布号
NL191634(B)
申请公布日期
1995.07.17
申请号
NL19830001251
申请日期
1983.04.08
申请人
KENNAMETAL, INC.
发明人
分类号
E21D9/10;E02F9/28;E21B10/62;E21B10/633;E21C35/18;E21C35/19;E21C35/193;(IPC1-7):E21C35/18
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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