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Patents for William H. Guild Jr.
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	206,558	Jul. 30, 1878	W.H. Guild, Jr.	Valve Action of Duplex Engines and Pumps
	RE9,857	Sep. 06, 1881	W.H. Guild, Jr.	Valve Action of Duplex Engines and Pumps

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