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经营范围
发明名称
Means for holding cutter bits
摘要
申请公布号
GB2074631(A)
申请公布日期
1981.11.04
申请号
GB19810009191
申请日期
1981.03.24
申请人
KENNAMETAL INC
发明人
分类号
E21C35/19;E21C35/193;(IPC1-7):E21C35/18
主分类号
E21C35/19
代理机构
代理人
主权项
地址
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