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• Decade: 1950s ×
• Person: John B. Purinton ×
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1 result for “Owens-Corning Fiberglas”

1. Patent · August 15, 1950

   Insulated building block (US Patent 2,518,640, 1950)

   …filed January 11, 1946. The patent's description opens (from the scanned text): This invention relates generally to composite insulation unitsl suitable for user in building walls and partitions, refrigeration and frozen storage units and structures…