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All Patents in class 451/160
Patents 1 - 15 of 15
First set of recordsLast set of records
5,398Dec. 18, 1847W. HoveyMachinery for Grinding Knives which have Warped Sufacestool grinders
55,723Jun. 19, 1866W. SellersMachine for Planing Metalmetal planers
79,132Jun. 23, 1868A. Hathaway, J. KendallPolishing Glasspolishing and buffing machinery
172,803Jan. 25, 1876A. WarthTextile cutting machine
428,426May 20, 1890J.H. Storey, H.J. BamfordMachine for grinding twist or other drillssharpening machines
667,321Feb. 05, 1901M.L. KeyesEdge Tool Grindersharpening machines
946,635Jan. 18, 1910F. FrankeMachine for grinding straight machine-knivescutter grinding
1,233,120Jul. 10, 1917F.R. PatchGrinding and Polishing Machinestone cutting machines
1,281,001Oct. 08, 1918C.R. HazelGrinding and Polishing Machinepolishing and buffing machinery
1,895,122Jan. 24, 1933F.K. BenedictTraveling wheel grindergrinders
1,917,504Jul. 11, 1933F.W. CurtisCutter Grindersharpening machines
2,113,287Apr. 05, 1938W.G. BaldenhoferMachine for Grinding and Sharpening Broachesbroach sharpening machines
2,118,967May 31, 1938F.W. CurtisCutter grindertool grinders
2,621,686Dec. 16, 1952J.E. TompkinsMachine tool with motor-driven rotary and axially fed toolsradial arm saws
4,833,831May 30, 1989W.T. Armstrong, Jr.Apparatus and Method for Sizing and Finishing Fixed Jaw Openings of Open-Ended Wrencheswrench components
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