1836124

Information

• Patent Grant
• 1836124

• References
• Source

• Patent Number

  1,836,124

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1931
  93 years ago

• CPC

  • G11B23/14 - providing ability to repeat location
  • G11B15/28 - through rollers driving by frictional contact with the record carrier
  • G11B15/34 - through non-skip drive means
  • G11B15/605 - without displacing the guiding means
  • G11B25/10 - Apparatus capable of using record carriers defined in more than one of the sub-groups G11B25/02 - G11B25/08; Adaptor devices therefor

• US Classifications

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