2776341

Information

• Patent Grant
• 2776341

• References
• Source

• Patent Number

  2,776,341

• Date Filed

  Not available

• Date Issued

  Tuesday, January 1, 1957
  68 years ago

• CPC

  • H04M3/4876 - Time announcements
  • H04M3/50 - Centralised arrangements for answering calls Centralised arrangements for recording messages for absent or busy subscribers; Centralised arrangements for recording messages

• US Classifications

  • 360 - Dynamic magnetic information storage or retrieval
  • 379 - Telephonic communications