2820177

Information

• Patent Grant
• 2820177

• References
• Source

• Patent Number

  2,820,177

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1958
  66 years ago

• CPC

  • H02M1/045 - for multiphase systems

• US Classifications

  • 315 - Electric lamp and discharge devices: systems