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1 result for “Owens-Corning Fiberglas”

1. Patent · May 5, 1942

   Composite Sheet (US Patent 2,281,591, 1942)

   …May 5, 1942, filed April 28, 1937. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to a composite sheet and the method of making the same.