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Patents for Threadwell Tap & Die Co.
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	2,153,054	Apr. 04, 1939	H.J. Smith	Die stock and tap wrench
	2,227,281	Dec. 31, 1940	H.J. Smith	Tap
	2,826,873	Mar. 18, 1958	G.C. Rau	Machine tool

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