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1 result for “Owens-Corning Fiberglas”

1. Patent · January 23, 1923

   Non-conducting Covering for Boilers and other Vessels (US Patent 1,443,221, 1923)

   …1921. The patent's description opens (from the scanned text): The invention consists in improvements relating to fire-resisting coverings or laggings for preventing the passage of heat out of or into boilers or other vessels…