1 result for “Owens-Illinois”
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Patent · December 26, 1950
Apparatus for impregnating heat insulating material (US Patent 2,535,087, 1950)
…1945. The patent's description opens (from the scanned text): The present invention relates to apparatus for the manufacture of impregnated material of the kind to which the impregnating agent in a suitable solvent is applied…