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All Patents of Type: metal bending machines
Patents 1 - 15 of 21
First set of recordsNext set of recordsLast set of records
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
300,140Jun. 10, 1884P. Ackermann, M. SchlummMachine for Bending Metallic Hoopsmetal bending machines
326,746Sep. 22, 1885W.H. JohnsonCombined Gang Punch and Bending Machinemetal punches
408,685Aug. 13, 1889C.A. BertschBending Rollmetal 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
510,764Dec. 12, 1893C.A. BertschMetal Bending Machinemetal bending machines
583,166May 25, 1897C.A. BertschMetal Bending Machinemetal bending machines
777,817Dec. 20, 1904F.H. StolpMachine for making Radiator Tubesmetal bending machines
877,038Jan. 21, 1908C.A. BertschBending Rollsmetal bending machines
1,144,459Jun. 29, 1915F.V. BurmanAngle-iron-bending machinemetal bending machines
1,327,641Jan. 13, 1920F.H. StolpMachine for Folding Metal Tubesmetal bending machines
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