A data distributing system wherein an electronic book data storage center which is stored with a plurality of pieces of book data is capable of communicating with electronic book vending machines 2 via a communication line and/or a communication satellite. In each of the vending machines, a storage medium...http://www.google.de/patents/US7801737?utm_source=gb-gplus-sharePatent US7801737 - Data distributing system and data recording method
