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1 result for “Owens-Corning Fiberglas”

1. Patent · August 22, 1939

   Oven (US Patent 2,170,409, 1939)

   …1936. It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to double-walled stove thereof is thermal insulating material I4 in the ovens or the like. y…