9 Electronic L-C Delay Lines; Electronic Digital Modules: Frequency Multiplier Modules, Logic Delay Lines, Multi-Logic Delay Lines, Programmable Logic Delay Lines, Logic Delay Modules, Double Logic Delay Modules, Pulse Generator Modules, Noise Filter Modules, Square Wave Generator Modules; Electronic Linear Modules: Tone Filter Modules, Tone Generator Modules, Tone Detector Modules; Film Capacitors of Metalized Polyester, Polycarbonate, Polypropylene and Polystyrene-Foil Capacitors; and Toroidal Inductors