Patents for William G. Richards


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Patents for William G. Richards
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	264,900	Sep. 26, 1882	W.G. Richards	Speed Indicator
	328,861	Oct. 20, 1885	W.G. Richards	Calipers
	510,293	Dec. 05, 1893	W.G. Richards	Machine Vice