Patents for William Hannay


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Patents for William Hannay
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
301,829	Jul. 08, 1884	W.H. Snyder, E. Penney	Traction-Engine	traction engine propulsion components
314,071	Mar. 17, 1885	W.H. Snyder	Saw-mill dog	sawmill dogs