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All Patents in class 408/181
Patents 1 - 15 of 22
First set of recordsNext set of recordsLast set of records
18,003Aug. 11, 1857A. WeeksExpanding auger-bitadjustable drill bits
64,581May 07, 1867J.G. SchmidtImprovement in machines for cutting bungsbung making machines
123,201Jan. 30, 1872G. SchloemerImprovement in machines for making barrel-headsbarrel making machines
144,583Nov. 11, 1873J. WheelockImprovement in tool-holders and cutter-heads for boring-barsboring bars
164,953Jun. 29, 1875F. WilligImprovement in Expansible Bitsadjustable drill bits
255,846Apr. 04, 1882L.R. FaughtBoring-bardrilling and boring
260,497Jul. 04, 1882W.L. ParmeleeImprovements in Expansion-Bitsadjustable drill bits
442,828Dec. 16, 1890C.P. RussellScrew-cutting dietaps and dies
594,615Nov. 30, 1897B.H. FowleExpansive Bitadjustable drill bits
719,089Jan. 27, 1903F.W. ConantScrew Plate and Diedrill accessories
1,004,572Oct. 03, 1911A.L. JenningsAuger-bitadjustable drill bits
1,386,082Aug. 02, 1921W.M. WhitneyDrum-saw machineother wood sawing machines
1,740,055Dec. 17, 1929J.H. AbramsonExpansive bitadjustable drill bits
1,769,230Jul. 01, 1930H.H. ManningRotary cutterboring bars
2,305,737Dec. 22, 1942J.H. RichardsBoring Attachment for Milling Machinesmilling machine tools
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