4. Recording, communication, or information retrieval equipment
  5. Video or audio transmission, recording or playback equipment
  6. Phonograph or housing therefor

John E. O'Donnell

Inventor

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Disc jockey turntable

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Phonograph or housing therefor
Patent

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Touch sensor system

Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral adapting
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1808808

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