3817537

Information

• Patent Grant
• 3817537

• References
• Source

• Patent Number

  3,817,537

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  50 years ago

• CPC

  • G11B7/128 - Modulators
  • G11B7/007 - Arrangement of the information on the record carrier
  • G11B7/24 - Record carriers characterised by shape, structure or physical properties, or by the selection of the material
  • G11B7/26 - Apparatus or processes specially adapted for the manufacture of record carriers
  • G11B11/06 - with reproducing by mechanical sensing
  • G11B23/0057 - Intermediate mediums

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER