All Patents in class 60/412


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All Patents in class 60/412
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	27,938	Apr. 17, 1860	W.C. Turnbull	Air Engine
	331,359	Dec. 01, 1885	E.F. Woodbury, G. Patten, J. Merrill, J.A. Woodbury	Air Engine
	3,400,881	Sep. 10, 1968	G.N. Levesque	Compressed Air Economizer for Fluidic Controls