3424919

Information

• Patent Grant
• 3424919

• References
• Source

• Patent Number

  3,424,919

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1969
  56 years ago

• CPC

  • H02J13/00 - Circuit arrangements for providing remote indication of network conditions
  • H04Q9/08 - Calling by using continuous ac
  • Y10T307/944 - Power circuit controlled

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 318 - Electricity: motive power systems
  • 361 - Electricity: electrical systems and devices