2678959

Information

• Patent Grant
• 2678959

• References
• Source

• Patent Number

  2,678,959

• Date Filed

  Not available

• Date Issued

  Tuesday, May 18, 1954
  72 years ago

• CPC

  • G05D23/2237 - using discharge tubes

• US Classifications

  • 373 - Industrial electric heating furnaces
  • 219 - Electric heating
  • 236 - Automatic temperature and humidity regulation
  • 315 - Electric lamp and discharge devices: systems
  • 361 - Electricity: electrical systems and devices