3613004

Information

• Patent Grant
• 3613004

• References
• Source

• Patent Number

  3,613,004

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  53 years ago

• CPC

  • H04W88/188 - using frequency address codes

• US Classifications

  • 340 - Communications: electrical
  • 455 - Telecommunications