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All Patents in class 408/230
Patents 1 - 15 of 37
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NumberDatePatenteeTitleType
1,114XJul. 31, 1809E. L'HommedieuDouble podded central screw augerauger bits
2,642XJul. 17, 1816E. L'HommedieuSingle twist screw augerauger bits
8,349XAug. 08, 1834A. NewtonWood augerauger bits
8,350XAug. 08, 1834N.C. SanfordWood augerauger bits
5,036Mar. 27, 1847A. Newton, L.B. Smith, E. SanfordWood augerauger bits
6,088Feb. 06, 1849H. PeelerImproved Method of Boring Gun-Barrelstwist drill bits
6,221Mar. 27, 1849N.C. SanfordMeans of auger manufactureauger bits
8,162Jun. 17, 1851R. CookAugerauger bits
13,897Dec. 04, 1855C.C. TolmanGimletgimlets
14,752Apr. 22, 1856K. CurtisImproved augerauger bits
38,119Apr. 07, 1863S.A. MorseTwist Drill Bittwist drill bits
41,517Feb. 09, 1864G.W. LowPump Boring Bitsdrill bits
61,208Jan. 15, 1867A.C. KassonImprovement in augersauger bits
79,012Jun. 16, 1868N.C. SanfordImprovement in Augersauger bits
81,607Sep. 01, 1868P. CunninghamBit for Mortising Machinedrill bits
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