2619931

Information

• Patent Grant
• 2619931

• References
• Source

• Patent Number

  2,619,931

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1952
  72 years ago

• CPC

  • G11B33/06 - combined with other apparatus having a different main function
  • B62J3/00 - Acoustic signal or alarm devices Arrangement of such devices on cycles
  • B62J2700/636 - Signaling devices

• US Classifications

  • 116 - Signals and indicators
  • 084 - Music
  • 369 - Dynamic information storage or retrieval
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER