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All Patents in class 81/436
Patents 1 - 15 of 86
First set of recordsNext set of recordsLast set of records
35,337May 20, 1862J. ThompsonScrew Driverscrewdrivers
67,014Jul. 23, 1867J.A. AyresImproved Screw-Driverscrewdriver blades
70,923Nov. 12, 1867T.D. VorheesImprovement in Screw-Driversscrewdriver mechanisms
74,490Feb. 18, 1868J.A. BidwellScrewdriver and Countersinkscrewdriver blades
101,207Mar. 29, 1870A.S. ApgarImprovement in Screw and Screw-Driverscrewdriver blades
118,617Aug. 29, 1871G.B. Cornell, J. LaceyBush and Wrench for Barrelswrenches
RE5,026Aug. 06, 1872G.B. Cornell, J. LaceyImproved Wrench for Securing Metallic Bushing in Casks or Barrelswrenches
173,356Feb. 08, 1876T.J. SloanImprovement in Screw-Driversscrewdriver blades
RE8,468Oct. 29, 1878G.B. Cornell, J. LaceyBung-Wrencheswrenches
236,692Jan. 18, 1881S.B. PeakmanScrew-Driverscrewdrivers
287,809Nov. 06, 1883W. DevereuxScrew-Driverscrewdriver mechanisms
289,056Nov. 27, 1883R.C. Ellrich, G.S. AllenScrewdriverscrewdriver handles
315,137Apr. 07, 1885F.L. Hamlen, Z.T. FurbishRatchet Screw-Driverratcheting screwdrivers
320,920Jun. 30, 1885N.W. FarrandScrew-Driverscrewdriver mechanisms
344,160Jun. 22, 1886H.S. BrownsonRatcheting Screwdriverratcheting screwdrivers
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