3811265

Information

• Patent Grant
• 3811265

• References
• Source

• Patent Number

  3,811,265

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • G04G9/0011 - using coded signals
  • H04B3/54 - Systems for transmission via power distribution lines
  • H04B2203/542 - using zero crossing information
  • H04B2203/5458 - Monitor sensor Alarm systems

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology