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发明名称
Earthworking tool and method for protecting from abnormally high cutting loads
摘要
申请公布号
GB2118227(A)
申请公布日期
1983.10.26
申请号
GB19830008683
申请日期
1983.03.29
申请人
* KENNAMETAL INC
发明人
ROBERT H * MONTGOMERY
分类号
E21D9/10;E02F9/28;E21B10/62;E21B10/633;E21C35/18;E21C35/19;E21C35/193;(IPC1-7):E21C35/18;E02F9/18
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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