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

Johnson Chou

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Monitor

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Monitor

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Telephone equipment
Patent

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Winding stair

Static structures (e.g. – buildings) – Stepped; e.g. – stair – Helical type
Patent

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Profile ID: LFUS-PAI-P-303912

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