2905769

Information

• Patent Grant
• 2905769

• References
• Source

• Patent Number

  2,905,769

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1959
  65 years ago

• CPC

  • H04M3/4876 - Time announcements
  • G04C21/14 - Electro-acoustic time announcement

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 242 - Winding, tensioning, or guiding
  • 379 - Telephonic communications
  • 968 - Horology