Patents for George H. Cannon


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Patents for George H. Cannon
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	215,293	May 13, 1879	D.C. Prescott	Improvement in balanced valves for steam-engines
	226,350	Apr. 06, 1880	D.C. Prescott	Reciprocating-saw mill
	301,153	Jul. 01, 1884	D.C. Prescott	Hoisting apparatus