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All Patents in class 408/231
Patents 1 - 15 of 17
First set of recordsNext set of recordsLast set of records
NumberDatePatenteeTitleType
85,021Dec. 15, 1868C. MurdockImprovement in cylindrical sawsaw teeth
167,165Aug. 31, 1875J.J. GrantImprovement in die-stockstap wrenches and die stocks
168,349Oct. 05, 1875J.C. ShermanImprovement in screw-cutting diestaps and dies
260,314Jun. 27, 1882G.V. Sheffield, J.A. ParksDrill Chuckdrill press chucks
314,086Mar. 17, 1885H. WaasBung-cutterhollow bits
333,170Dec. 29, 1885G.F. StearnsMethod of auger manufactureauger bits
339,544Apr. 06, 1886S.P. GrahamCombined boring-tool and holdermetalworking twist drills
720,554Feb. 17, 1903C. BeneshCombined Wrench and Thread Cutteralligator wrenches
809,755Jan. 09, 1906H.A. Smith, W.F. FrenkToolwrench combination tools
828,859Aug. 14, 1906J. MerckensCombined Wrench and Thread Retracing Toolwrench combination tools
1,063,074May 27, 1913J.B. ShirerReamertapered reamers
1,264,370Apr. 30, 1918L. GroffDrillmetalworking twist drills
1,791,649Feb. 10, 1931W.W. VosperPipe Reamerpipe reamers
1,830,179Nov. 03, 1931B.F. StowellCutting Toolmilling machine cutters
2,343,632Mar. 07, 1944H.F. BakewellTap constructiontaps and dies
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