Commutators; Egg-candlers; Transistors; Verniers; Car video recorders; Converters for electric plugs; Couplings, electric; Dog whistles; Electrical plugs and sockets; Electronic collars to train animals; Eyeglass cords; Light emitting diodes (LEDs); Measuring rulers; Mouse pads; Plug adaptors; Precision theodolites; Screw-tapping gauges; Spectacle cases; Spectacle cords; Sports whistles; Switches, electric; Weighing apparatus and instruments; Weights for use with weighing scales; Electrical t...