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Patents for P. A. Whitney
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	74,870	Feb. 25, 1868	P.A. Whitney	Drill and Countersink
	83,347	Oct. 20, 1868	P.A. Whitney, A.W. Whitney	Machine for Bending and Folding Sheet Metal
	83,348	Oct. 20, 1868	P.A. Whitney	Improvement in counter-sink

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