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• Decade: 1920s ×
• Written by: George H. Ellis ×
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1 result for “Owens-Illinois”

1. Patent · November 24, 1925

   Insulating Plaster Board (US Patent 1,562,499, 1925)

   …US Patent No. 1,562,499 on November 24, 1925, filed August 8, 1923. The patent's description opens (from the scanned text): This invention relates to a plaster board and method of making the same.