Bar code symbol reading system with automatic modes of hand-held (i.e., hands-on) and stand-supported (i.e., hands-free) operation. In the hand-held mode of automatic operation, the user initiates laser scanning by simply bringing the object within at least a portion of the scan field of the automatic...http://www.google.es/patents/US5939698?utm_source=gb-gplus-sharePatente US5939698 - Bar code symbol reading system having automatic hand-supportable bar coding symbol reading device and stand for supporting projected scan field thereof
Bar code symbol reading system having automatic hand-supportable bar coding ...