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Patents for Leslie S. Hubbert
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  1,755,353Apr. 22, 1930L.S. HubbertFilter Pot Press
  1,778,803Oct. 21, 1930L.S. HubbertHydraulic Plastic Press
  1,867,972Jul. 19, 1932C.J. Zube, L.S. HubbertPress for Manufacturing Molded Articles
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