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1 result for “Owens-Corning Fiberglas”

1. Patent · November 18, 1941

   Conduit (US Patent 2,263,292, 1941)

   …1941, filed August 22, 1939. The patent's description opens (from the scanned text): This invention relates to conduits, and has more particular reference to conduits made from plastic materials extruded to shape. y The primary…