1 result for “Owens-Corning Fiberglas”
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Patent · October 22, 1940
Friction Facing (US Patent 2,218,535, 1940)
…218,535 on October 22, 1940, filed September 20, 1937. The patent's description opens (from the scanned text): This invention relates to 'a new and improvedbeing perpendicular to the wearing face of the clutch facing.