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Patents for United States Twist Drill Co.
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
432,635	Jul. 22, 1890	S. Moore	Machine for Making Twist Drills	making drills and augers
432,636	Jul. 22, 1890	S. Moore	Machine for Straightening and Sizing Twist Drills	making drills and augers

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