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Patents for Benjamin Cushwa
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	5,346X	Jan. 24, 1829	B. Cushwa	Forcing valve piston churn
	1,691	Jul. 15, 1840	B. Cushwa	Self-adjusting log-brace for sawmills
	AI46	Jun. 19, 1841	B. Cushwa	Self-adjusting log brace

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