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Patents for Frank H. Mason
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
500,286	Jun. 27, 1893	W. Lewis	Bending-roll	metal bending machines
513,261	Jan. 23, 1894	M. Jaeger	Vise	bench vises
587,637	Aug. 03, 1897	E. Bausch	Prism gage

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