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• Decade: 1960s ×
• Written by: Vaughan W. Rhoades ×
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1 result for “Owens-Corning Fiberglas”

1. Patent · January 28, 1964

   Permeable well cement (US Patent 3,119,448, 1964)

   …It was assigned to Cities Service Research and Development Co. The patent's description opens: This invention relates to permeable cement filters and more particularly to the use of permeable cement in forming such filters as…