An electronic cash register includes a RAM for storing an article file in which article data for various articles are filed. The article data includes an article code, an article name, a department, and a unit price. The RAM also includes an auxiliary file in which article data items of other articles...http://www.google.de/patents/US5347451?utm_source=gb-gplus-sharePatent US5347451 - Electronic cash register having auxiliary file containing information which is transferrable to an article file to reduce operator entries
