All Patents in class 409/327


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All Patents in class 409/327
Patents 31 - 32 of 32
Number	Date	Patentee	Title	Type
2,077,730	Apr. 20, 1937	W.F. Zimmermann	Balanced Helicoidal Change Speed Drive for Shapers	metal shapers
2,454,490	Nov. 23, 1948	V.G. Evans, J.R. Tackett	Machine Tool Shaper Attachment	milling machine accessories