 This technology was also used in a mass digitization project from the Bavarian State Library where 8,900 books from the 16th century became digitized using three of these v-shape scanners within 18 months.Indus International, Inc, based in West Salem, WI, produces scanners which were bought by some US entities for services like interlibrary loan.Most high-end commercial robotic scanners use traditional air and suction technology while some others use alternative approaches like bionic fingers for turning pages.