Patents for H. C. Warren


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Patents for H. C. Warren
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	82,957	Oct. 13, 1868	W.A. Ives	Improvement in hollow augers
	95,803	Oct. 12, 1869	W.A. Ives	Improvement in Auger