Electronic circuit boards; Controller circuit boards; Printed circuit boards; Printed circuit boards for computers; Printed circuit boards for remote data transmission; Data transmission apparatus; Data receiving apparatus; Apparatus for remote data transmission; Wireless transmission apparatus; Wireless receiving apparatus; Apparatus for sending messages; Electronic message handling apparatus; Electronic remote data transfer apparatus; Remote control apparatus connected by modems to computers; Remote control devices (electronic, other than remote control devices for toys); Remote electric or electronic control stations; Remote monitoring apparatus; Wireless transmission apparatus for remote control