Alidades; Biometric fingerprint door locks; Cabinets for loudspeakers; Compasses for measuring; Computer cursor control devices, namely, computer mouse; Data processing equipment, namely, couplers; Earphones; Educational apparatus, namely, manipulative blocks used as teaching aids for the visualization of math concepts; Electric switches; Electronic pens; Global positioning system (GPS); Light systems comprising light sensors and switches; Magnifying glasses; Marking and signalling buoys; Mou...