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

Tatsuo Nishikawa

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Back tension imparting device

Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent

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Copy paper feed system

Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent

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Device for controlling the density of printing characters

Recorders – Thermal recording
Patent

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Disc recording and/or reproducing apparatus

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

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Disc recording and/or reproducing apparatus having a disc casset

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

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Profile ID: LFUS-PAI-P-544569

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