1 result for “Owens-Illinois”
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Patent · September 22, 1959
Process for rendering masonry water-repellent (US Patent 2,905,562, 1959)
…received US Patent No. 2,905,562 on September 22, 1959, filed July 29, 1957. The patent's description opens (from the scanned text): This invention is concerned with a process for rendering masonry water-repellent.