2638349

Information

• Patent Grant
• 2638349

• References
• Source

• Patent Number

  2,638,349

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1953
  71 years ago

• CPC

  • G11B3/08541 - for pivoting pick-up arms

• US Classifications

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