6090 *1 Abr 199618 Ago 1998Symbol Technologies, Inc.Microfilm reader for high density, two dimensional bar code symbologyUS5825402 *26 Mar 199320 Oct 1998Symbol Technologies, Inc.Method and appratus for reading and writing indicia such as bar codes using a scanned laser beamUS64422966 Nov 199827 Ago 2002Storage Technology CorporationArchival information storage on optical medium in human and machi