1 result for “Owens-Corning Fiberglas”
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Patent · August 19, 1941
Friction Material (US Patent 2,252,991, 1941)
…1939. It was assigned to Raybestos Manhattan Inc. The patent's description opens (from the scanned text): This invention relates to improvements in friction material suitable for ,brake blocks, brake lining,clutch facings and the like…