3119982

Information

• Patent Grant
• 3119982

• References
• Source

• Patent Number

  3,119,982

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1964
  61 years ago

• CPC

  • H04W88/027 - using frequency address codes
  • H04B5/04 - Calling systems

• US Classifications

  • 340 - Communications: electrical
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems