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Patents Granted on 1839-04-__
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
GB-183,908,023Apr. 09, 1839J. NasmythBearings of locomotive steam-enginessteam locomotives
RX-8Apr. 18, 1839J. MackayImprovement in Mode of Fitting the Hammer-Heads of Piano-Fortesmusic instrument maker
1,132Apr. 22, 1839J. WetherellVisevises
1,138Apr. 29, 1839O.N. MayMachine for planing or dressing sawed shinglesshingle machines
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