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1 result for “Owens-Illinois”

1. Patent · April 22, 1924

   Heat Insulating Material and process of producing same (US Patent 1,491,725, 1924)

   …1,491,725 on April 22, 1924. The patent's description opens (from the scanned text): This invention relates to a new and im proved article of'manufacture, and has for an object the provision of…