Disclosed is a fully automatic bar code symbol reading system having an hand-supportable laser bar code reading device which can be used in either an automatic hands-on mode of operation, or in an automatic hands-free mode of operation. The system includes a scanner support frame for supporting the hand-supportable...http://www.google.co.uk/patents/US6189793?utm_source=gb-gplus-sharePatent US6189793 - Automatic laser projection scanner with improved activation controlling mechanism
