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• Decade: 1940s ×
• Written by: Hesse Jack ×
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1 result for “Owens-Illinois”

1. Patent · August 10, 1948

   Manufacture of Cementitious Sheets (US Patent 2,446,782, 1948)

   …1946. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to the manufacture of hard and dense fibro ce'mentitious sheets, and is particularly concerned with an…