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All Patents in class 476/49
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	1,015,031	Jan. 16, 1912	A.B. Landis	Change-speed gearing
	1,017,877	Feb. 20, 1912	A.B. Landis	Change-speed gearing
	1,176,180	Mar. 21, 1916	J.J. Thacher	Grinding-Machine

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