Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Francois Defougeres0
Sylvain Lamy0
Pierre Rigolet0
Date of Patent
January 16, 2007
0Patent Application Number
102753700
Date Filed
April 26, 2001
0Patent Primary Examiner
Patent abstract
The invention concerns a drill including a generally cylindrical body, tipped with a head and provided, over at least part of its length, generally spiral evaporating grooves. The groove(s) are delimited, over at least part of their length, by a succession of facets, attached to one another, and linked to one another by sharp edges or by radius blends.
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