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All Patents in class 254/356
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	414,380	Nov. 05, 1889	W.W. Dingee	Elevator
	419,041	Jan. 07, 1890	Z. Goodell	Elevator
	2,152,969	Apr. 04, 1939	W.W. Nash	Balancer
	2,465,594	Mar. 29, 1949	H. Knutson	Steam Winch

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