They incorporate the customer's sort code and account number, as well as a two-digit 'check sum' [a code to identify errors].

This helps identify errors and address objections prior to publication, allowing him to get the last word in the exchange.

While most student misconceptions go unrecognized, there has been an informal effort to identify errors and misconceptions present in textbooks.

In order to avail herself of the process, the patentee must identify errors in the original claims, thereby surrendering some of the broad claims she already has in return.