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All Patents in class 72/412
Patents 1 - 11 of 11
First set of recordsLast set of records
801XNov. 04, 1807J. Beaumont, R. WheatleyMode of Making Stove Pipesstove pipes
1,553Apr. 15, 1840W. FieldManner of Manufacturing Screw-Augersmaking drills and augers
56,602Jul. 24, 1866H.W. PellImproved Dies for Forming the Heads of Wrencheswrench jaw components
109,115Nov. 08, 1870J. CunninghamImprovement in apparatus for fitting and setting axlesspecialty machines
542,127Jul. 02, 1895W.H. WoodCircular Flanging Machinesheet metal flanging machines
568,911Oct. 06, 1896W.C. KroegherWelding Machinewelding machines
877,315Jan. 21, 1908W. FehrMetal Swaging Machinemetal swaging machines
1,121,675Dec. 22, 1914A.O. SlentzPower slip-joint-forming machinesheet metal flanging machines
1,273,441Jul. 23, 1918E.A. BardwellMethod or Process of Nurlingpin punches
1,910,839May 23, 1933J. JensenTool for punching, riveting, and like operationsriveting tools
2,742,802Apr. 24, 1956E.C. Clarke, H.A. WeyerImpact devicedrop hammers
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