Patents for Alfred Judson


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Patents for Alfred Judson
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	4,683X	Feb. 23, 1827	A. Judson	Pump for steam boiler
	7,755	Nov. 05, 1850	J. Judson, A. Judson	Valve for Governors
	RE255	Jan. 10, 1854	J. Judson, A. Judson	Improved Governor-valve for Steam-engines