1513188

Information

• Patent Grant
• 1513188

• References
• Source

• Patent Number

  1,513,188

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1924
  100 years ago

• CPC

  • G11B3/50 - Anvils or other supports opposing stylus forces

• US Classifications

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