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Patents Granted on 1803-04-04
Patents 1 - 2 of 2
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NumberDatePatenteeTitleType
441XApr. 04, 1803T.H. RawsonAntibilious pillsmedical pills and syrups
442XApr. 04, 1803J. RichardsonImprovement in his evaporating furnaceindustrial furnaces
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