1 result for “Owens-Illinois”
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Patent · January 29, 1946
Process for Liberation of the Magnesia of Magnesium Silicates (US Patent 2,393,920, 1946)
Walter H. MacIntire received US Patent No. 2,393,920 on January 29, 1946. The patent's description opens (from the scanned text): The invention is susceptible of numerous embodiments without departing from the spirit thereof.