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Patents for Robert L. Harris
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
7,432Jun. 11, 1850J.A. WoodburyMatch Plane with Gouge Cuttermatch planes
26,152Nov. 22, 1859E.G. AllenCombination steam-gagesteam pressure gauges
26,871Jan. 17, 1860E.G. AllenSteam-gagesteam pressure gauges
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