1 result for “Owens-Illinois”
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Patent · July 31, 1923
Refractory Products from Dolomite (US Patent 1,463,399, 1923)
…Duffield received US Patent No. 1,463,399 on July 31, 1923, filed December 1, 1922. The patent's description opens (from the scanned text): This invention relates to the manufacture of refractory products from dolomite.