All Patents in class 122/182.1


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All Patents in class 122/182.1
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	59,866	Nov. 20, 1866	J.A. Smith	Improved Tool
	147,437	Feb. 10, 1874	M.W. Shapley	Improvement in steam-boilers
	RE6,501	Jun. 22, 1875	M.W. Shapley	Improvement in steam-boilers
	240,299	Apr. 19, 1881	B. Brazelle	Steam-generator