All Patents in class 14/2


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All Patents in class 14/2
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	2,769X	Apr. 03, 1817	T. Burr	Truss Bridge
	5,760X	Dec. 22, 1829	L. Wernwag	Improvement in his patented bridges
	7,994X	Feb. 03, 1834	J. Snyder	Building bridges