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Patents for John First
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
22,264Dec. 07, 1858J. FirstImprovement in sewing-machines
29,035Jul. 03, 1860J. FirstImprovement in sewing-machinessewing machines
30,138Sep. 25, 1860G. FrostCut-off valve for steam-enginessteam check valves
166,355Aug. 03, 1875J. FirstImprovement in resawing-machinesband resaws
182,438Sep. 19, 1876W.D. HerschelImprovement in scroll-sawing machinesscrollsaws
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