3721830

Information

• Patent Grant
• 3721830

• References
• Source

• Patent Number

  3,721,830

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  51 years ago

• CPC

  • H02J13/0051 - Zero-crossing time
  • Y02B90/263 - using modification of a parameter of the network power signal
  • Y04S40/123 - Using modification of a parameter of the network power signal

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 340 - Communications: electrical