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Patents for Wendell R. Curtis
Patents 1 - 14 of 14
First set of recordsLast set of records
NumberDatePatenteeTitleType
146,539Jan. 20, 1874E.J. ManvilleReversing Gearings for Metal-Planersmetal planers
151,627Jun. 02, 1874A. SchmitterSurface Gagesurface gauges
153,885Aug. 11, 1874C.E. BillingsImprovements in Dies For Forging Lathe-Dogstool making machines
156,640Nov. 10, 1874W.R. Landfear, N.E. CampbellImprovement in lathes for turning spoolsspool or bobbin machines
164,391Jun. 15, 1875F.A. PrattImprovement in metal-shearing machines
164,392Jun. 15, 1875F.A. PrattImprovement in drop-hammers
168,412Oct. 05, 1875F.A. PrattImprovement in cranescranes
172,854Feb. 01, 1876J.J. GrantImprovement in Tap-Wrenchestap wrenches and die stocks
173,802Feb. 22, 1876T. McDonoughImprovement in Calipers and Dividerscalipers
183,761Oct. 31, 1876H. HammondDies For Forming Machinists' Hammershammers
D11,425Sep. 23, 1879H. HammondDesign for Hatchetsaxes
224,119Feb. 03, 1880D.E. WhitonScroll-chuckmetal lathe chucks
228,755Jun. 15, 1880R. HaydenMonkey Wrenchnut wrenches
241,563May 17, 1881F.A. PrattMetal-planing machine
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