An electronic input-display apparatus, includes a casing having a microprocessor therein, a display device located above the casing and spaced from the casing by a predetermined distance, a data-input keyboard provided for the casing, a weighting section provided on the casing, and a radio transmitting/receiving...http://www.google.fr/patents/US5153585?utm_source=gb-gplus-shareBrevet US5153585 - Electronic input-display apparatus
