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All Patents of Type: screwdriver mechanisms
Patents 1 - 15 of 39
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70,923Nov. 12, 1867T.D. VorheesImprovement in Screw-Driversscrewdriver mechanisms
219,425Sep. 09, 1879G. AbramsImprovement in Crank Screw-Driversscrewdriver mechanisms
285,484Sep. 25, 1883M.C. HenleyScrew-driverscrewdriver mechanisms
287,809Nov. 06, 1883W. DevereuxScrew-Driverscrewdriver mechanisms
320,920Jun. 30, 1885N.W. FarrandScrew-Driverscrewdriver mechanisms
366,439Jul. 12, 1887T. TroyReversible Screw Driverscrewdriver mechanisms
470,777Mar. 15, 1892C.E. BillingsMultiblade Screwdriverscrewdriver mechanisms
470,778Mar. 15, 1892L.H. BoydenAttachment for Screwdriversscrewdriver mechanisms
486,395Nov. 15, 1892W.M. CarrScrew Driverscrewdriver mechanisms
491,687Feb. 14, 1893J.R. QuimbyAttachment for Screwdriverscrewdriver mechanisms
687,401Nov. 26, 1901C.M. MorseScrew-Driverscrewdriver handles
701,195May 27, 1902Z.T. FurbishMeans of Securing Handles or Rests to Toolsscrewdriver handles
729,004May 26, 1903L.S. StarrettScrew-Driverscrewdriver mechanisms
750,182Jan. 19, 1904Z.T. FurbishReversible Screw-Driverscrewdriver mechanisms
872,048Nov. 26, 1907W. BroadSingle Crank Screwdriverscrewdriver mechanisms
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