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APPARATUS FOR USE IN CONNECTION WITH THE PROCESSING, RECORDING, REPRODUCTION, TRANSMISSION, AND RECEPTION OF ELECTRONIC SIGNALS; INTEGRATED CIRCUITS; [PRE-RECORDED MAGNETIC TAPES; PRE-RECORDED AUDIO AND VIDEO TAPES ]AND VIDEO DISCS RECORDED WITH ENCODED SIGNALS FOR PLAYBACK USING A NOISE REDUCTION SYSTEM AND/OR SURROUND SOUND DECODER; [AUDIO AND VIDEO TAPES THAT HAVE BEEN RECORDED USING A HEADROOM EXTENSION PROCESS; ]CINEMATOGRAPHIC FILMS; [POWER SUPPLIES;] AND ALIGNMENT AND TEST EQUIPMENT FOR [ELECTRONIC] APPARATUS FOR USE IN CONNECTION WITH THE PROCESSING, RECORDING, REPRODUCTION, TRANSMISSION, AND RECEPTION OF ELECTRONIC SIGNALS