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All Patents in class 81/453
Patents 1 - 15 of 22
First set of recordsNext set of recordsLast set of records
9,457Dec. 07, 1852J.W. SwitzerScrewdriverscrewdrivers
302,308Jul. 22, 1884J.S. WorksScrew driver
324,121Aug. 11, 1885G.F. KolbScrew-driverscrewdrivers
355,392Jan. 04, 1887N. FellersScrew-driverspiral screwdrivers
470,778Mar. 15, 1892L.H. BoydenAttachment for Screwdriversscrewdriver mechanisms
730,804Jun. 09, 1903L.S. StarrettScrew-driverscrewdrivers
815,758Mar. 20, 1906L.S. StarrettScrew Holding Screwdriverscrewdrivers
864,633Aug. 27, 1907G.O. Leopold, T.J. FegleyScrew holder for drivers
882,937Mar. 24, 1908T.J. FegleyScrew-eye driver
1,116,532Nov. 10, 1914R.A. ArmstrongScrewdriver Attachmentscrewdrivers
1,250,682Dec. 18, 1917W.F. ShollCombination Screwdriver and Tweezersscrewdrivers
1,412,550Apr. 11, 1922B.L. BentleyScrew Gripping Screwdriverscrewdriver blades
1,433,341Oct. 24, 1922C.W. ColeScrew Holder for screw driversscrewdrivers
1,522,927Jan. 13, 1925J.F. Davis, M. Paul, F.J. WickstromScrew Gripping Screwdriverscrewdriver blades
1,562,543Nov. 24, 1925S.J. CoxScrew Gripping Screwdriverscrewdriver blades
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