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Patents for Ralph S. Greenlee
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
199,285Jan. 15, 1878R.S. Greenlee, R.L. GreenleeImprovement in mortising and boring machinesdrilling and boring
283,341Aug. 14, 1883R.S. GreenleeHollow-chisel mortising machinemortising machines
326,640Sep. 22, 1885R.S. Greenlee, R.L. GreenleeMachine-tabletablesaws
377,749Feb. 14, 1888R.S. GreenleeMortising machinemortising machines
418,978Jan. 07, 1890R.S. Greenlee, R.L. GreenleeMortising-machinemortising machines
454,730Jun. 23, 1891R.S. Greenlee, E.G. StromForming and sanding door panelssanding machines
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