4. Electrical audio signal processing systems and devices
  5. One-way audio signal program distribution
  6. Public address system

Osaaki Watanuki

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High density recording and playback device

Static information storage and retrieval – Systems using particular element – Molecular or atomic
Patent

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Magnetic disk unit

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent

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Magnetic field observation with tunneling microscopy

Electricity: measuring and testing – Magnetic – Magnetometers
Patent

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Speech recognition system

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-1560644

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