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All Patents of Type: metal bending machines
Patents 1 - 15 of 72
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NumberDatePatenteeTitleType
6,615XJul. 20, 1831J. ButterworthIron Hoops to Be Applied to the Bottoms of Card and Drawing Cansmetal bending machines
10,200Nov. 01, 1853G. WillstonImprovement in machines for straightening or curving railsmetal bending machines
92,134Jun. 29, 1869M.G. WilderImproved machine for bending tubesmetal bending machines
106,603Aug. 23, 1870R. MillerImprovement in machines for bending volute springsmetal bending machines
252,853Jan. 24, 1882A.R. WoodyattMachine for bending and shaping metal articlesmetal bending machines
295,851Mar. 25, 1884H.A. AinsworthMetal-bending machinemetal bending machines
300,140Jun. 10, 1884P. Ackermann, M. SchlummMachine for Bending Metallic Hoopsmetal bending machines
326,746Sep. 22, 1885W.H. JohnsonCombined Gang Punch and Bending Machinemetal punching machines
334,455Jan. 19, 1886W.J. MuncasterMetal Bending and Straightening Machinemetal bending machines
408,685Aug. 13, 1889C.A. BertschBending Rollmetal bending machines
458,115Aug. 18, 1891E. ThomsonMethod of Electric Bending and Straighteningmetal bending machines
468,582Feb. 09, 1892H.A. SchneeklothMachine for bending metal barsmetal bending machines
468,659Feb. 09, 1892E. HeydeBending-rollmetal bending machines
491,968Feb. 14, 1893W. LewisBending-rollmetal bending machines
500,286Jun. 27, 1893W. LewisBending-rollmetal bending machines
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