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Patents for Joseph C. Schaf Jr.
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
1,523,723Jan. 20, 1925J.C. Schaf, Jr.Universal holding carriage for test stands and lathes
2,092,187Sep. 07, 1937J.C. Schaf, Jr.Device for sharpening blades
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