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• Decade: 1920s ×
• Written by: Wallace W. Greenwood ×
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1 result for “Owens-Illinois”

1. Patent · July 10, 1923

   Magnesia Refractory (US Patent 1,461,444, 1923)

   …10, 1923, filed February 28, 1919. It was assigned to Norton Co. The patent's description opens (from the scanned text): My invention relates to refractory articles and cements and more particularly to refractories containing magnesia.