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Patents for Robert A. Brown
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
219,425Sep. 09, 1879G. AbramsImprovement in Crank Screw-Driversscrewdriver mechanisms
499,929Jun. 20, 1893O.E. PerrigoEngine Latheengine lathes
3,162,059Dec. 22, 1964S.E. FarekasPower Feed Clutch Mechanismengine lathes
3,162,073Dec. 22, 1964S.E. FarekasHalf Nut Closing Arrangementengine lathes
3,220,289Nov. 30, 1965S.E. FarekasIntermediate Shaft Support Bearingengine lathes
3,234,827Feb. 15, 1966J.F. ProbstSafety Interlock
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