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Animated display controlled by an audio device

Dynamic magnetic information storage or retrieval – Recorder control of an external device
Patent

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Apparatus and method for automatically performing channel change

Dynamic magnetic information storage or retrieval – Recorder control of an external device
Patent

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Apparatus for detecting tape running in a tape recorder

Dynamic magnetic information storage or retrieval – Recorder control of an external device
Patent

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Audio circuit with noise muting feature

Dynamic magnetic information storage or retrieval – Recorder control of an external device – Slide or movie projectors
Patent

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Audio-visual apparatus

Dynamic magnetic information storage or retrieval – Recorder control of an external device – Slide or movie projectors
Patent

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Audio-visual presentation device

Dynamic magnetic information storage or retrieval – Recorder control of an external device – Slide or movie projectors
Patent

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Audiovisual filmstrip image display apparatus and method using f

Dynamic magnetic information storage or retrieval – Recorder control of an external device – Slide or movie projectors
Patent

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