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发明名称
Removable countersink bit
摘要
A removable countersink bit comprises a body, a flange, at least one clamp, and a plurality of cutting teeth. The removable countersink bit creates countersink holes for receiving manhole fixtures and the like.
申请公布号
US2009035079(A1)
申请公布日期
2009.02.05
申请号
US20080152772
申请日期
2008.05.16
申请人
HUNT MARTY D
发明人
HUNT MARTY D.
分类号
B23B47/00;B27G15/00
主分类号
B23B47/00
代理机构
代理人
主权项
地址
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