A laser scanning device for scanning an interface surface of a product item is provided. The interface surface has visible information relating to the product item and a plurality of tags disposed thereon. Each tag contains coded data indicative of an identity of the product item and a plurality of locations...http://www.google.de/patents/US7469836?utm_source=gb-gplus-sharePatent US7469836 - Hand-held laser scanning device for scanning a product item
