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All Patents in class 74/333
Patents 1 - 15 of 60
First set of recordsNext set of recordsLast set of records
134,237Dec. 24, 1872C.H. AmidonImprovement in drillseggbeater drills
246,710Sep. 06, 1881G.W. BeanBack-gear clutch for upright drillsdrill presses
321,196Jun. 30, 1885U. Eberhardt, H.E. EberhardtDrilling-Machinedrill presses
341,207May 04, 1886J.R. BackMetal-turning lathemetal lathes
407,339Jul. 23, 1889H.E. Eberhardt, U. EberhardtDrilling Machinedrill presses
427,325May 06, 1890J.E. Hitch, F. Mill, C.H. IrwinBoring-machineportable timber mortisers
715,921Dec. 16, 1902W.A. WoodFeed Mechanism for Screw Cutting Lathesmetal lathes
725,099Apr. 14, 1903W.F. Groene, R.K. Le BlondVariable Speed Mechanism for Back Gearinggearing
725,141Apr. 14, 1903A.E. Robinson, C.F. LaurSpeed Changing Mechanismmetal lathes
761,324May 31, 1904W.L. SchellenbachSpeed Changing Mechanism
788,483Apr. 25, 1905N.D. Chard, W. LodgeHead-Stock for Engine-Lathesmetal lathes
788,500Apr. 25, 1905N.D. ChardGearing for Lathe Head-Stocksgearing
788,658May 02, 1905R.K. Le BlondSpeed Changing Devicemachine mechanisms
807,274Dec. 12, 1905I.H. Johnson, Jr.Gearing for Lathes or Other Toolsmachine mechanisms
810,634Jan. 23, 1906H.L. FlatherChange Speed Gearing for Lathesgearing
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