2973460

Information

• Patent Grant
• 2973460

• References
• Source

• Patent Number

  2,973,460

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1961
  63 years ago

• CPC

  • H02H3/405 - using phase sequence analysing arrangements

• US Classifications

  • 361 - Electricity: electrical systems and devices