A stereo code which can display a large amount of information on a small area without impairing the beauties of the goods etc. is provided, the stereo code comprising: a first stage information displaying region as a basic shape, comprising an inlaying body made up of a first rectangle having a prescribed...http://www.google.fr/patents/US5971283?utm_source=gb-gplus-shareBrevet US5971283 - Stereo code
