2384634

Information

• Patent Grant
• 2384634

• References
• Source

• Patent Number

  2,384,634

• Date Filed

  Not available

• Date Issued

  Tuesday, September 11, 1945
  78 years ago

• CPC

  • H04M3/4876 - Time announcements

• US Classifications

  • 369 - Dynamic information storage or retrieval
  • 340 - Communications: electrical