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• Decade: 1930s ×
• Written by: Lewis B. Miller ×
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1 result for “Owens-Illinois”

1. Patent · June 22, 1937

   Magnesia Insulation (US Patent 2,084,588, 1937)

   …filed November 22, 1935. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to magnesia insulation, particularly to so-called 85% magnesia, and the method of making…