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All Patents of Type: wood drill bits
Patents 1 - 10 of 10
First set of recordsLast set of records
10,744Apr. 04, 1854A. PeaseDrill for metal gun-barrelsdrill bits
22,394Dec. 21, 1858A. Denio, N.S. WhiteMethod of attaching cutting-tips to auger-shankstool making machines
22,474Dec. 28, 1858H. StoneExpanding bitdrill bits
27,782Apr. 10, 1860L. EamesMortising-toolmortise chisels
47,812May 23, 1865W.W. Grier, R.H. BoydImproved drill-bitdrill bits
CA-669Oct. 22, 1870J. LeydenImprovements in expansion drillsdrill bits
518,262Apr. 17, 1894C.W. Meggenhofen, A.S. CortrightBoring-machinedrill bits
845,360Feb. 26, 1907M. JunglingRecess-boring toolwood drill bits
2,794,468Jun. 04, 1957R.W. HuxtableWoodcutting bit assemblydrill bits
4,527,449Jul. 09, 1985W.E. Sydlowski, H.A. TrentBoring bit and method for manufacture thereofwood drill bits
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