| http://www.w3.org/ns/prov#value | - es and other detecting devices includes first and second image processors, the image processing level...http://www.google.com/patents/US5258586?utm_source=gb-gplus-sharePatent US5258586 - Elevator control system with image pickups in hall waiting areas and elevator carsAdvanced Patent SearchPublication numberUS5258586 APublication typeGrantApplication numberUS 07/496,294Publication dateNov 2, 1993
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