1 result for “Owens-Corning Fiberglas”
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Patent · January 12, 1926
Heat Insulating Material (US Patent 1,569,755, 1926)
…Irvin received US Patent No. 1,569,755 on January 12, 1926. The patent's description opens (from the scanned text): This invention pertains to a strong, light, heat insulating material and a method of making…