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Patents for Israel H. Johnson Jr.
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
759,111May 03, 1904I.H. Johnson, Jr.Variable Speed Gear for Motor Diven Lathes or Other Tools
807,274Dec. 12, 1905I.H. Johnson, Jr.Gearing for Lathes or Other Tools
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