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All Patents in class 92/134
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	143,292	Sep. 30, 1873	D.B. Caldwell, J.H. McGowan	Crank-Connection for Steam Engines
	514,169	Feb. 06, 1894	N. Tesla	Reciprocating engine
	626,368	Jun. 06, 1899	W.E. Crane	Vertical Engine

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