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发明名称
ROTATABLY MOUNTABLE TOOL BIT
摘要
申请公布号
GB1486212(A)
申请公布日期
1977.09.21
申请号
GB19740054124
申请日期
1974.12.14
申请人
KENNAMETAL INC
发明人
分类号
E21C35/19;E21C35/197;(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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