Cards incorporating electronic devices; Casings for electronic devices; Casings for opto-electronic devices; Electronic devices for data processing; Electronic devices for indicating the interaction of fields; Electronic devices for information processing; Electronic devices for the adjustment of the headlights of motor vehicles; Electronic devices for the transmission of data between computers; Electronic devices for the transmission of data between microprocessors; Electronic devices for transmitting data; Electronic devices for use in the self-locking of car windows; Semiconductors being electronic devices; Testing apparatus for checking electronic devices; Waveguides (electronic devices)