4. Dynamic magnetic information storage or retrieval
  5. Record transport with head stationary during transducing
  6. Disk record

Hirofumi Matsumura

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Protection of electronic apparatus against erroneous...

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate

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Protection of electronic apparatus against static...

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate

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