1 result for “Owens-Corning Fiberglas”
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Patent · December 3, 1935
Cork Insulation (US Patent 2,022,727, 1935)
…727 on December 3, 1935, filed November 9, 1931. It was assigned to Armstrong Cork Co. The patent's description opens (from the scanned text): This invention relates to moulded cork pipe :overing and fitting covers.