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1 result for “Owens-Illinois”

1. Patent · September 10, 1963

   Acoustical tile and method of producing the same (US Patent 3,103,254, 1963)

   …Patent No. 3,103,254 on September 10, 1963, filed January 26, 1959. The patent's description opens: This invention relates to an acoustical tile unit and to a composition and method for making the same.