1 result for “Owens-Illinois”
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Patent · June 9, 1936
Insulating Material (US Patent 2,043,249, 1936)
…2,043,249 on June 9, 1936, filed August 9, 1933. The patent's description opens (from the scanned text): This invention relates to a plastic refractory insulating material and to a process for its production;