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Patents for William Chrystal
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	139,578	Jun. 03, 1873	G.M. Hinkley, A. Rodgers	Improvement in machines for moving logs
	161,903	Apr. 13, 1875	A. Rodgers	Improvement in machines for moving logs

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