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Patents for H. M. Corwin
Patents 1 - 15 of 16
First set of recordsNext set of recordsLast set of records
NumberDatePatenteeTitleType
447,805Mar. 10, 1891R. YandaCaliperscalipers
D20,771May 26, 1891C.W. HubbardDesign for an Axaxes
460,590Oct. 06, 1891P. MeyerPlierspliers
496,190Apr. 25, 1893H. CooperWrenchnut wrenches
512,159Jan. 02, 1894H. CooperWrenchquick adjust wrenches
512,938Jan. 16, 1894D.W. BlackSucker Rod Elevator and Wrenchwrenches
RE11,459Dec. 18, 1894G.P. WoelfelPipe Wrenchpipe wrenches
538,994May 07, 1895G.P. WoelfelPipe Wrenchpipe tongs
553,037Jan. 14, 1896A. MertesGear-cutting machinegear making machines
580,273Apr. 06, 1897W.W. GrierBoring and doweling machinedrilling and boring
600,389Mar. 08, 1898H.C. SwanScrew ClampC clamps
738,565Sep. 08, 1903T.D. Cobedesh, W.A. McGuireWrenchscrew adjust wrenches
1,054,413Feb. 25, 1913I.E. HindmanLifting-jackautomobile mechanic
1,089,704Mar. 10, 1914I.E. HindmanRail-fasteningtrack and switches
1,093,269Apr. 14, 1914I.E. HindmanJack
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