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Patents Granted on 1873-03-25
Patents 1 - 10 of 10
First set of recordsLast set of records
RE5,335Mar. 25, 1873J. HendyDouble friction-couplingindustrial machine clutches
137,052Mar. 25, 1873L. ChapmanImprovement in Dies for Forming Wrench-Headstool making machines
137,053Mar. 25, 1873L. ChapmanImprovements in the Manufacture of Wrench-Headswrench jaw components
137,079Mar. 25, 1873J.L. KnowltonImprovement in car-brakes
137,129Mar. 25, 1873S.B. DexterCombined Wrenches and Grappling Toolsself-adjust wrenches
137,136Mar. 25, 1873J.T. HawkinsImprovement in machines for making spool-blanksspool or bobbin machines
137,172Mar. 25, 1873G. BlytheImprovement in saw-filing machinessaw sharpening machines
137,258Mar. 25, 1873T. StockmarrImprovement in fluting-machineswood shapers
137,261Mar. 25, 1873H. TaylorRotary Steam Enginesrotary steam engines
137,262Mar. 25, 1873G.H. Van VleckCounting Register
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