DATA INPUT DEVICES, NAMELY, KEYS FOR COMPUTER KEYPADS, COMPUTER KEY PADS, COMPUTER KEYBOARDS, PROGRAMMABLE COMPUTER KEYBOARDS, AND MODULAR COMPUTER KEYBOARDS, ALL THE FOREGOING FOR USE IN STATIONARY AND MOBILE CASHIER SYSTEMS, IN POINT-OF-SALE SYSTEMS, AND IN DATA INPUT TERMINALS AND SYSTEMS USED FOR RETAIL, WHOLESALE AND TO-THE-TRADE SALES, IN AND AT RESTAURANTS, HOTELS, BUSINESSES, PHARMACIES, DRUGSTORES, GAS STATIONS, KIOSKS, AIRPORTS, BANKS, CREDIT AND INSURANCE BUSINESSES, IN PRIVATE DOMESTIC APPLICATIONS SUCH AS ACCESS SYSTEMS TO PRIVATE HOMES, YARDS, GARDENS AND GARAGES AND IN ACCESS SYSTEMS FOR TRAIN STATIONS AND PARKING GARAGES INCLUDING THOSE CONSISTING IN PART OF TOUCH-SENSITIVE SURFACES IN THE NATURE OF TOUCH PADS AND TOUCH SCREENS THROUGH WHICH DATA TRANSFER IS PERFORMED THROUGH WIRELESS RADIO SIGNALS; ELECTROTECHNICAL AND ELECTROMAGNETIC APPARATUS AND DEVICES, NAMELY, SERVICE AND/OR DISPLAY UNITS CONSISTING OF MONITORS, SCREEN DISPLAYS AND COMPUTERS FOR STATIONARY AND MOBILE DOMESTIC TECHNOLOGY, ALL THE FOREGOING TO CONTROL LARGE KITCHEN APPLIANCES, NAMELY, OVENS, DISH WASHERS AND STEAM TABLES, TO CONTROL HEATING SYSTEMS AND THE PRODUCTION OF WARM-WATER, SAID APPARATUS AND DEVICE INCLUDING TOUCH-SENSITIVE SURFACES IN THE NATURE OF TOUCH PADS AND TOUCH SCREENS THROUGH WHICH DATA TRANSFER TAKES PLACE BY WIRELESS RADIO SIGNALS