Multi-memory electronic identification tags (200) are utilized in short-range cooperative electronic identification systems comprised of readers (100) and tags (200) wherein a reader (100) may communicate with the tag (200) if the tag belongs to a certain class of tags. Communication is accomplished...http://www.google.com.au/patents/US5499017?utm_source=gb-gplus-sharePatent US5499017 - Multi-memory electronic identification tag
