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Patents for John C. Crane
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	62,476	Feb. 26, 1867	G.H. Clemens, D.G. Coppin	Improvement in lock-up safety-valves
	62,477	Feb. 26, 1867	G.H. Clemens, D.G. Coppin	Improvement in lock-up safety-valves
	63,614	Apr. 09, 1867	G.H. Clemens	Improvement in head-blocks for sawmills

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