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All Patents of Type: spiral screwdrivers
Patents 1 - 15 of 111
First set of recordsNext set of recordsLast set of records
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
157,087Nov. 24, 1874I. AllardImprovement in screw-driversscrewdrivers
191,304May 29, 1877J.T. BruenImprovement in wire screws and nutsspiral screwdrivers
201,372Mar. 19, 1878J.B. WestImprovement in screw-driversspiral screwdrivers
261,925Aug. 01, 1882E. HerzigScrew-driverspiral screwdrivers
268,938Dec. 12, 1882A.H. ReidBit-stockspiral screwdrivers
278,261May 22, 1883C.H. OlsonScrew-driverspiral screwdrivers
301,915Jul. 15, 1884C.H. OlsonScrew-driverspiral screwdrivers
306,096Oct. 07, 1884C.H. OlsonScrew-driverspiral screwdrivers
327,780Oct. 06, 1885N. FellersScrew driverspiral screwdrivers
339,277Apr. 06, 1886J.R. DoolittleScrew driverspiral screwdrivers
354,359Dec. 14, 1886J.C. SpencerHandle for screw-drivers and other toolsspiral screwdrivers
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