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Patents Granted on 1878-03-19
Patents 1 - 15 of 20
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NumberDatePatenteeTitleType
RE8,127Mar. 19, 1878P.H. KellsImprovement in brick-machinesbrick and tile making machines
201,350Mar. 19, 1878J. KritchImprovement in hub-boring machinesdrilling and boring
201,366Mar. 19, 1878J.B. StockhamImprovement in planing-machineswood planers
201,371Mar. 19, 1878W.P. WalterImprovement in Combined Bevel, Square, and Leveltry squares
201,372Mar. 19, 1878J.B. WestImprovement in screw-driversspiral screwdrivers
201,376Mar. 19, 1878W.H. AbramsImprovement in saw-mill head-blockssawmill headblocks
201,379Mar. 19, 1878C.H. AmidonImprovement in bit-bracesbrace chucks
201,404Mar. 19, 1878C.F. GeorgeSoldering Tweezers for Jewelerstweezers
201,407Mar. 19, 1878E.F. GordonImprovement in Clampsvises
201,416Mar. 19, 1878T. HodgsonImprovement in saw-sharpening machinessaw sharpening machines
201,444Mar. 19, 1878O. PrattImprovement in fastening the ends of band-sawssawblades
201,449Mar. 19, 1878A.K. RiderDrill Grinderdrill grinders
201,481Mar. 19, 1878G.W. AtkinsImprovement in Saw-Setssaw sets
201,498Mar. 19, 1878F. ClarkBandsaw blade guidebandsaw guides
201,503Mar. 19, 1878J.W. DavenportImprovement in shingle-shaving machinesshingle machines
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