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Patents for Ross Valve Co.
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
295,676	Mar. 25, 1884	G. Ross	Air-pump
375,200	Dec. 20, 1887	W. Ross, G. Ross	Water-engine
384,336	Jun. 12, 1888	W. Ross, G. Ross	Water-engine valve

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