A parcel trace system for tracing parcels handled by a service provider for a plurality of clients. The system includes relay (30) adapted to communicate with the clients across the Internet and with a server database. The server database stores a plurality of parcel objects, each parcel object including...http://www.google.fr/patents/US6220509?utm_source=gb-gplus-shareBrevet US6220509 - Parcel trace system
