An electronic scale for weighing an article and displaying and/or printing the weight, price and other data of the article. The scale includes a key input unit for registering and recalling article data. The key input unit has preset keys indicating article names, alphabetical letters, and other indicia....http://www.google.co.uk/patents/US4693329?utm_source=gb-gplus-sharePatent US4693329 - Electonic scale with label character size change capability
