4. Electrical audio signal processing systems and devices
  5. One-way audio signal program distribution

John G. Kenning

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Receiver housing

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Radio receiver – tuner or amplifier – or housing therefor
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Swimming training device

Electrical audio signal processing systems and devices – One-way audio signal program distribution
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Swimming training device with removable receiver disposed therei

Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
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Profile ID: LFUS-PAI-P-907235

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