1 result for “Owens-Corning Fiberglas”
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Patent · September 18, 1923
Heat Insulating Material and method of manufacture (US Patent 1,468,149, 1923)
…filed February 24, 1920. The patent's description opens (from the scanned text): This invention relates to heat-insulating material and methods of manufacture thereof more particularly adaptedfor use in insulating flues, stoves and other heated…