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Patents for S. H. Roper
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	34,333	Feb. 04, 1862	S.H. Roper	Hot Air Engine
	34,723	Mar. 18, 1862	S.H. Roper	Air Engine
	38,866	Jun. 09, 1863	S.H. Roper	Hot Air Engine

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