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Patents for Benjamin Henfrey
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	316X	Feb. 12, 1801	B. Henfrey, T. Bedwell	Evaporating Machine
	320X	Mar. 02, 1801	B. Henfrey	Mode of increasing evaporation for the purpose of distilling
	366X	Apr. 16, 1802	B. Henfrey	Improvement Being a Cheap Mode of Obtaining Light From Fuel

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