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Patents for A. H. Spencer
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
303,994Aug. 26, 1884R. Holman, D.J. White, F.H. FosterSpiral latherope and spiral cutting machines
518,106Apr. 10, 1894W.J. JohnsonTool-Handletool handles
D24,503Jul. 23, 1895L.S. StarrettTry Squaresquares
557,446Mar. 31, 1896L.S. StarrettSpeed Measuremeasurement gauges
D25,392Apr. 14, 1896L.S. StarrettDesign for a Plumb and Level Framemetallic levels
576,626Feb. 09, 1897L.S. StarrettHack Sawhacksaws
580,432Apr. 13, 1897L.S. StarrettSpeed Indicatorwheel-based measurers
601,800Apr. 05, 1898L.S. StarrettSpeed Indicatormeasurement gauges
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