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发明名称
Flat bit sphere named the V-back paddlesphere bit
摘要
It is a flat drill bit or blade, which could have 1 or 2 blades with a sphere to eliminate most jerking and grabbing, for more efficient drilling.
申请公布号
US2006216123(A1)
申请公布日期
2006.09.28
申请号
US20050090265
申请日期
2005.03.24
申请人
BURDICK BRETT W
发明人
BURDICK BRETT W.
分类号
B23B51/00
主分类号
B23B51/00
代理机构
代理人
主权项
地址
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