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All Patents in class 408/206
Patents 1 - 12 of 12
First set of recordsLast set of records
6,391Apr. 24, 1849L. BrownCutting out cylinders for bobbins, &c.specialty machines
43,673Aug. 02, 1864R. DudgeonDrilldrill bits
53,722Apr. 03, 1866A. WyckoffPump-Log Hollow Augerhollow bits
61,121Jan. 08, 1867N. ThompsonImprovement in boring-toolsdrilling and boring
72,436Dec. 17, 1867A. WippoAuger & Rounder for Installing Castersauger bits
211,952Feb. 04, 1879J.G. BakerImprovement in machines for sawing out segments of woodspecialty machines
900,044Sep. 29, 1908N.E. SwansonHollow Augerhollow bits
958,112May 17, 1910H.B. Maschmeier, T.S. HalliwellBoring-Toolhollow bits
1,855,873Apr. 26, 1932W.H. ShortellCutting toolhollow bits
2,794,469Jun. 04, 1957W.H. ShortellHole sawshollow bits
5,842,820Dec. 01, 1998L.G. Lee, R.C. LeeCutter for use in forming dowels, plugs, and tenons
6,099,214Aug. 08, 2000R.C. Lee, L.G. LeeCutter for use in forming dowels, plugs, and tenons
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