1517387

Information

• Patent Grant
• 1517387

• References
• Source

• Patent Number

  1,517,387

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1924
  100 years ago

• CPC

  • G11B3/0955 - using mechanical means for detecting the end of the recording
  • 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