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Patents for Henry A. Ryther
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
1,034,838Aug. 06, 1912H.A. RytherChange-speed gearing
  1,419,310Jun. 13, 1922H.A. RytherGlass cutter
  1,470,197Oct. 09, 1923H.A. RytherChuck
1,762,315Jun. 10, 1930D.B. Swain, H.A. RytherRatchet screw driver
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