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Patents Granted on 1832-01-30
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
6,915XJan. 30, 1832J.C. DouglasPiston safety valvesteam safety valves
6,916XJan. 30, 1832S. DrinkhouseWashing hats
6,917XJan. 30, 1832J.T. QuimbyTruss for vessels
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