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All Patents in class 74/333
Patents 1 - 15 of 69
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NumberDatePatenteeTitleType
134,237Dec. 24, 1872C.H. AmidonImprovement in drillseggbeater drills
246,710Sep. 06, 1881G.W. BeanBack-gear clutch for upright drillsindustrial machine clutches
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 Gearingmetalworking speed changing mechanisms
725,141Apr. 14, 1903A.E. Robinson, C.F. LaurSpeed Changing Mechanismmetal lathes
761,324May 31, 1904W.L. SchellenbachSpeed Changing Mechanismmetalworking speed changing mechanisms
788,483Apr. 25, 1905N.D. Chard, W. LodgeHead-Stock for Engine-Lathesmetal lathes
788,500Apr. 25, 1905N.D. ChardGearing for Lathe Head-Stocksindustrial machine gearing
788,658May 02, 1905R.K. Le BlondSpeed Changing Devicemetalworking speed changing mechanisms
795,222Jul. 18, 1905B.M. HansonGearing for lathesmetal lathes
807,274Dec. 12, 1905I.H. Johnson, Jr.Gearing for Lathes or Other Toolsmetalworking machine mechanisms
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