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All Patents in class 81/453
Patents 1 - 10 of 29
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PictureNumberDatePatenteeTitle
9,457Dec. 07, 1852J.W. SwitzerScrewdriver
96,263Oct. 26, 1869J.C. PinnerScrew holding screwdriver
274,912Apr. 03, 1883M.B. CrawfordScrew holding screwdriver
302,308Jul. 22, 1884J.S. WorksCountersink Screwdriver
311,308Jan. 27, 1885C.E. GlessnerScrew holding screwdriver, Watchmakers tool
324,121Aug. 11, 1885G.F. KolbScrew holding screwdriver
355,392Jan. 04, 1887N. FellersScrew-driver
382,670May 08, 1888J.C. TrovillionCombined Screw Hold, Screw Driver and Counter Sink
470,778Mar. 15, 1892L.H. BoydenAttachment for Screwdrivers
730,804Jun. 09, 1903L.S. StarrettScrew-driver
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