2537657

Information

• Patent Grant
• 2537657

• References
• Source

• Patent Number

  2,537,657

• Date Filed

  Not available

• Date Issued

  Tuesday, January 9, 1951
  74 years ago

• CPC

  • G11B21/18 - while the head is moving
  • G11B19/247 - using electrical means
  • G11B21/06 - the record carrier having mechanical means to ensure traverse movement of the head
  • G11B21/12 - Raising and lowering Back-spacing or forward-spacing along track Returning to starting position otherwise than during transducing operation

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 318 - Electricity: motive power systems
  • 369 - Dynamic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER