3077577

Information

• Patent Grant
• 3077577

• References
• Source

• Patent Number

  3,077,577

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1963
  61 years ago

• CPC

  • H04W88/028 - using pulse address codes
  • H04Q5/08 - Signalling by continuous ac

• US Classifications

  • 340 - Communications: electrical
  • 455 - Telecommunications