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All Patents in class 81/28
Patents 16 - 30 of 87
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72,099Dec. 10, 1867D.Y. SmithImprovement in Auger-Handlesauger handles
75,870Mar. 24, 1868C.M. DabollImprovement in braces for bitsbrace chucks
76,956Apr. 21, 1868J. SwanImprovement in auger-handleshand drills
79,825Jul. 14, 1868A.D. GoodellBit-stockbrace chucks
80,365Jul. 28, 1868H.D. PennoyerImprovement in Auger-Handlesauger handles
83,156Oct. 20, 1868T.C. HendryImprovement in Auger-Handlesauger handles
90,919Jun. 08, 1869E. BroadImprovement in Attaching Augers to Handlesauger handles
92,927Jul. 27, 1869A. AmoryImprovement in guide-attachments for boring-instrumentsdrill accessories
95,220Sep. 28, 1869D.W. GeorgeImprovement in Auger Handles
97,398Nov. 30, 1869G.W. HerringImprovement in Auger-Handlesauger handles
97,830Dec. 14, 1869J. SwanImprovement in Auger-Handlesauger handles
108,267Oct. 11, 1870W.A. IvesImprovement in Auger-Handlesauger handles
110,920Jan. 10, 1871W.A. IvesImprovement in Auger-Handlesauger handles
112,419Mar. 07, 1871W. ClevelandBit-bracebraces
133,440Nov. 26, 1872C.L. GriswoldImprovement in Gimletsgimlets
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