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Patents for J. H. Schumway
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
309,400Dec. 16, 1884G.D. MosherBirmingham Batwing Cast Iron Benchplane
377,645Feb. 07, 1888J.H. ShawLateral Lever
493,903Mar. 21, 1893G.W. WrightBlockplane Lateral Adjuster
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