Patents for William G. Richards


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