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All Patents in class 81/453
Patents 1 - 15 of 28
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NumberDatePatenteeTitleType
9,457Dec. 07, 1852J.W. SwitzerScrewdriverscrewdrivers
96,263Oct. 26, 1869J.C. PinnerScrew holding screwdriverscrewdriver blades
274,912Apr. 03, 1883M.B. CrawfordScrew holding screwdriverscrewdriver blades
302,308Jul. 22, 1884J.S. WorksCountersink Screwdriverscrewdriver blades
311,308Jan. 27, 1885C.E. GlessnerScrew holding screwdriver, Watchmakers toolwatchmaker
324,121Aug. 11, 1885G.F. KolbScrew holding screwdriverscrewdriver blades
355,392Jan. 04, 1887N. FellersScrew-driverspiral screwdrivers
382,670May 08, 1888J.C. TrovillionCombined Screw Hold, Screw Driver and Counter Sinkscrewdriver blades
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 driverscrewdriver blades
924,999Jun. 15, 1909C. KummerScrew holding screwdriverscrewdriver blades
1,116,532Nov. 10, 1914R.A. ArmstrongScrewdriver Attachmentscrewdrivers
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