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Patents Granted on 1842-12-??
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
2,878Dec. 12, 1842W.L. PetersMachine for mortising and tenoningmortising machines
GB-184,209,570Dec. 22, 1842R. WilsonImprovements in locomotive and other steam-enginessteam engine valve gear
2,895Dec. 31, 1842W. Douglas, B. DouglasPumphousehold hand pumps
2,900Dec. 31, 1842J.T. GilmoreInclined Water Wheelwater wheels
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