The present invention discloses a portable data exchanger with extended USB interface. One portable data exchanger of the present invention can exchange data with another portable data exchanger of the same design connected thereto without using a computer. Further, the portable data exchanger with extended...http://www.google.fr/patents/US20080052439?utm_source=gb-gplus-shareBrevet US20080052439 - Portable Data Exchanger with Extended USB Interface
Portable Data Exchanger with Extended USB Interface
