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All Patents of Type: metal straightening machines
Patents 1 - 15 of 31
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NumberDatePatenteeTitleType
128,287Jun. 25, 1872R. CrookerImprovement in machines for straightening rolled-metal platesmetal straightening machines
152,695Jun. 30, 1874C. ScofieldMachines for Straightening Tubing Shafting &c.metal straightening machines
170,461Nov. 30, 1875J.S. AtkinsonStraightening Machinemetal straightening machines
209,588Nov. 05, 1878J.S. SeamanMachine for Edging, Sizing and Straightening Non-Cylindrical Metal-Barsmetal straightening machines
319,603Jun. 09, 1885W.J. MuncasterMetal bending and straightening machinemetal straightening machines
352,652Nov. 16, 1886P. MedartMachine for Straightening Metal Bars or Pipesmetal straightening machines
352,705Nov. 16, 1886P. MedartMachine for straightening metal bars or pipesmetal straightening machines
352,706Nov. 16, 1886P. MedartMachine for straightening metal bars or pipesmetal straightening machines
432,636Jul. 22, 1890S. MooreMachine for Straightening and Sizing Twist Drillsmaking drills and augers
437,702Oct. 07, 1890M.D. LoomisConverting Helical Springs to Straight Barsmetal straightening machines
445,571Feb. 03, 1891W.A. McCoolMachine for Straightening and Polishing Metal Bars, &c.metal straightening machines
458,115Aug. 18, 1891E. ThomsonMethod of Electric Bending and Straighteningmetal bending machines
482,000Sep. 06, 1892C.B. BrainardWire Straightener and Cutting Machinemetal straightening machines
485,735Nov. 08, 1892H.F. BuskingShaft Straightenermetal straightening machines
525,003Aug. 28, 1894E. Hodgson, W. CopleyStraightening Machine for Shaftingmetal straightening machines
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