All Patents in class 122/114


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All Patents in class 122/114
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	89,240	Apr. 20, 1869	T.T. Prosser	Improvement in steam-generators
	193,085	Jul. 17, 1877	B. Holly	Steam Generator
	240,299	Apr. 19, 1881	B. Brazelle	Steam-generator
	458,413	Aug. 25, 1891	B. Brazelle	Steam-boiler