English to Italian Law/Patents IT (Information Technology) condizioni d'uso

" install the software on the number of computers covered by invoices for this license from xxxx, which are hereby incorporated by reference;
- use and transmit the software on a network within a site if authorized by an invoice from xxx; and
_ make copies of the software in machine readable form for backup purposes only. "
Si tratta delle condizioni d'uso di un software..ho dei problemi con form relativamente alla macchina di lettura ..aiuto!