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经营范围
发明名称
CUTTER BIT.
摘要
申请公布号
EP0428599(B1)
申请公布日期
1995.01.11
申请号
EP19890909369
申请日期
1989.07.13
申请人
KENNAMETAL INC.
发明人
STIFFLER, STEPHEN, P.;BEACH, WAYNE, H.
分类号
E02F9/28;E21C35/18;E21C35/183;E21D9/087;(IPC1-7):E21C35/18
主分类号
E02F9/28
代理机构
代理人
主权项
地址
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