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All Patents in class 72/438
Patents 31 - 45 of 62
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NumberDatePatenteeTitleType
462,775Nov. 10, 1891W.H. PotterHoop Riveting Machineriveting machines
523,050Jul. 17, 1894L.A. ParrockMachine for Forging or Hammering Metaldrop hammers
579,356Mar. 23, 1897E.H. WhitlockDrop Hammerdrop hammers
588,422Aug. 17, 1897C. GrüberMechanical or Drop Hammerdrop hammers
600,201Mar. 08, 1898J. JacksOliverpower hammers
632,265Sep. 05, 1899J. HortonDrop Hammerdrop hammers
651,754Jun. 12, 1900H. GuyotDouble Stamp Hammerdrop hammers
656,135Aug. 14, 1900H.H. HamlettHammer Pressforging presses
690,320Dec. 31, 1901D. RobertsonMachine for Hammering or Tapering Piston Ringsmetal swaging machines
706,151Aug. 05, 1902W. BauermeisterPower Hammerpower hammers
717,289Dec. 30, 1902J.M. Schroder, A.M. Schroder, B.C. SchroderTilt Hammerpower hammers
921,736May 18, 1909J. Pryke, J. TweedalePantograph Engraving Machinemetal engraving machines
RE12,990Jul. 13, 1909J. Pryke, J.T. RawsthornePantograph Engraving Machinemetal engraving machines
942,756Dec. 07, 1909W. Norris, T. Scott-KingPower Hammerpower hammers
995,742Jun. 20, 1911A. WalleFoot Powered Hammerfoot operated hammers
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