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Patents Granted on 1799-03-__
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
239XMar. 02, 1799C. WhitingExtracting oil from cotton seedscotton presses
240XMar. 16, 1799J. ShotwellSharpening axessharpeners
241XMar. 19, 1799J. PerkinsCheck to detect counterfeitsoffice worker
242XMar. 21, 1799J. ShackfordImprovement in propelling boatsnautical propulsion apparatus
243XMar. 27, 1799I. SanfordMachine for dressing clothtextile machines
244XMar. 27, 1799S. MoreyObtaining force from water by steamsteam engines
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