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Patents Granted on 1801-03-??
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
320XMar. 02, 1801B. HenfreyMode of increasing evaporation for the purpose of distillingdistilling apparatus
321XMar. 16, 1801R. WeemsBoring machine for postsdrilling and boring
322XMar. 16, 1801W. StillmanCutting veneersveneer machines
323XMar. 24, 1801J. StrongHydraulic Enginehydraulic motors
324XMar. 24, 1801I. HatchMode of making and discharging chain and cleaver shotgunsmith
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