4. Dynamic magnetic information storage or retrieval
  5. General recording or reproducing
  6. Signal switching
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Eight-head magnetic video tape recording and reproducing apparat

Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
Patent

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Electric circuit for accessory for host tape recorder

Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
Patent

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Electro-mechanical device for controlling a magnetic recorder

Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
Patent

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Electronic channel selecting system for a quad-stereo tape playe

Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
Patent

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Electronic switching circuit for use in magnetic head drives

Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
Patent

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Extended circuit of a HiFi KARAOKE video cassette recorder havin

Dynamic magnetic information storage or retrieval – General recording or reproducing – Signal switching
Patent

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