Articles adapted for preventing electromagnetic interference; Electric magnetic interference suppression filters; Electrical interference avoidance apparatus; Electrostatic interference eliminators; Filters for radio interference suppression; Interference suppression apparatus; Filters for electromagnetic radiation; Articles adapted for preventing electromagnetic interference in audio equipment; Electric magnetic interference suppression filters for audio equipment; Electrical interference avoidance apparatus for audio equipment; Electrostatic interference eliminators for audio equipment; Filters for radio interference suppression in audio equipment; Interference suppression apparatus for audio equipment; Filters for electromagnetic radiation in audio equipment; High fidelity instruments; Anti-noise apparatus for noise suppression; Anti-noise filters; Noise suppression apparatus

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