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Patents for Alexander F. Roberts
Patents 46 - 60 of 62
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NumberDatePatenteeTitleType
102,286Apr. 26, 1870C.V. LittlepageImprovement in sawssaw teeth
102,597May 03, 1870H.A. SchneeklothFoot-powered hoisthoists, winches, come-alongs
RE4,419Jun. 13, 1871L.P. BradleyImprovement in tape-measurestape measures
142,420Sep. 02, 1873J. TraversImprovement in machines for making window-sashwindow making machines
153,985Aug. 11, 1874J.H. SinkinsonSpool lathespool or bobbin machines
154,880Sep. 08, 1874A.F. MarshallImprovement in wood-bending machineswood bending machines
160,969Mar. 16, 1875O.W. TaftHandle For Cutlerycombination cork extractors
166,010Jul. 27, 1875P. Johnson, N.H. JohnsonImprovement in miter-boxesmiter boxes
168,649Oct. 11, 1875W. LatusImprovement in wood-splittersfirewood machines
169,475Nov. 02, 1875L.C. PrattImprovement in scroll-sawing machinesscrollsaws
174,228Feb. 29, 1876E.W. GillmanImprovement in machines for finishing barrelsbarrel making machines
175,101Mar. 21, 1876P. HughesImprovement in jig-sawsscrollsaws
175,389Mar. 28, 1876E.B. StimpsonImprovement in leather-skiving machinesleatherworker
179,932Jul. 18, 1876A. LuckhaputImprovement in machines for dressing stavesbarrel making machines
180,672Aug. 01, 1876E.B. StimpsonImprovement in apparatus for cutting and ornamenting shoe-uppersleatherworker
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