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1 result for “Owens-Corning Fiberglas”

1. Patent · August 30, 1966

   Extraction method (US Patent 3,269,667, 1966)

   …filed March 26, 1965. The patent's description opens: This invention relates to a method for the separation and extraction of solid materials, such as the separation of asbestos fibers from asbestos bearing ores and extraction…