1 result for “Owens-Illinois”
-
Patent · July 7, 1936
Process for the Purification of Asbestos (US Patent 2,046,971, 1936)
…Esch received US Patent No. 2,046,971 on July 7, 1936, filed May 9, 1935. The patent's description opens (from the scanned text): Our invention relates to a process for the puriflcation of asbestos.