1 result for “Owens-Corning Fiberglas”
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Patent · June 15, 1937
Cellular Heat Insulation Pipe Covering (US Patent 2,083,596, 1937)
…filed December 7, 1935. The patent's description opens (from the scanned text): This invention relates to heat insulation pipe covering of cellular construction, the cells running on substantially 45 degree angles circumferentially around the covering…