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Patents for Ernest W. Ostrom
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
  2,088,971Aug. 03, 1937G.H. Williams, E.W. OstromPump Anchor Structure
  2,298,567Oct. 13, 1942J. Kelly, G.H. Williams, E.W. OstromPump Anchor
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