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All Patents in class 74/127
Patents 1 - 15 of 140
First set of recordsNext set of recordsLast set of records
24,005May 17, 1859M.S. BrooksDrill-stockspiral drills
24,894Jul. 26, 1859G.I. WashburnBoring-toolhand drills
54,069Apr. 17, 1866D.F. HartfordImprovement in drill-stocksspiral drills
80,583Aug. 04, 1868I. AllardImprovement in screw-driversspiral screwdrivers
91,634Jun. 22, 1869W. HoferImprovement in screw-driverspiral screwdrivers
128,950Jul. 16, 1872G.J. CapewellDevices for Attaching Buttons To Garmentsspiral screwdrivers
133,994Dec. 17, 1872T.D. LakinImprovement in converting motionspiral screwdrivers
143,084Sep. 23, 1873J.K. LaudermilchImprovement in jeweler's drilling devicesspiral drills
157,087Nov. 24, 1874I. AllardImprovement in screw-driversscrewdrivers
157,099Nov. 24, 1874D.D. MacKayImprovement in hand-drills for drilling metalhand drills
201,372Mar. 19, 1878J.B. WestImprovement in screw-driversspiral screwdrivers
240,223Apr. 19, 1881G.D. BelcherHand-drillhand drills
261,925Aug. 01, 1882E. HerzigScrew-driverspiral screwdrivers
268,938Dec. 12, 1882A.H. ReidBit-stockspiral screwdrivers
278,261May 22, 1883C.H. OlsonScrew-driverspiral screwdrivers
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