4. Recording, communication, or information retrieval equipment
  5. Computer, data processor equipment

Richard G. Rutkowski

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Cassette

Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent

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Dictating machine

Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent

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Head support and positioning assembly for record/playback device

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent

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Portable dictating machine

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

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Record/playback device

Recording – communication – or information retrieval equipment – Computer – data processor equipment
Patent

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Profile ID: LFUS-PAI-P-40325

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