Akumulator listrik (Accumulators, electric);, Alat interkom (Intercommunication apparatus);, Alat memori komputer (Computer memory, Bahan untuk saluran induk listrik (kawat) (Materials for, Baterai listrik (Batteries, electric);, devices);, electricity mains (wires));, hardware);, Pedometer (Pedometers);, Perangkat keras komputer (Computer, Radio (Radios);, Telepon genggam (Mobile telephones);, Transistor [elektronik] (Transistors [electronic])