1 result for “Owens-Illinois”
-
Patent · January 11, 1944
Causticizing of Waste Magnesia Products (US Patent 2,338,886, 1944)
…It was assigned to Johns Manville. The patent's description opens (from the scanned text): This invention relates to basic magnesium carbonate compositions of the type suitable for insulating purposes in the form of pipe coverings…