1 result for “Owens-Illinois”
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Patent · June 25, 1963
Insulating material and the like (US Patent 3,095,347, 1963)
…095,347 on June 25, 1963, filed September 11, 1958. It was assigned to Johns Manville Perlite Corp. The patent's description opens: This invention relates to insulating materials such as acoustical tiles and the like.