2876293

Information

• Patent Grant
• 2876293

• References
• Source

• Patent Number

  2,876,293

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1959
  65 years ago

• CPC

  • G08B27/006 - with transmission via telephone network
  • H04M5/04 - Arrangements for indicating calls or supervising connections for calling or clearing

• US Classifications

  • 379 - Telephonic communications