1 result for “Owens-Corning Fiberglas”
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Patent · November 7, 1939
Heat Insulation (US Patent 2,179,057, 1939)
…1939, filed May 3, 1937. The patent's description opens (from the scanned text): My invention relates to insulation materials, more particularly to heat insulation of laminated or air-cell construction, and has for an object…