9 electrical parts and components, namely, electrical connectors, electrical power supplies, potentiometers, control circuits, circuit boards, electric relays, electromagnets, electric condensers, batteries, battery chargers, electric transformers, permanent magnets, printed circuits, integrated circuit cards, integrated circuits; blank magnetic computer tapes; scientific, electrical, and optical measuring, signaling and control apparatus, namely, optoelectric encoders, pressostates, and electrovalves; daisy wheel, impact, ink jet and computer printers