3131279

Information

• Patent Grant
• 3131279

• References
• Source

• Patent Number

  3,131,279

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1964
  60 years ago

• CPC

  • G05D23/2453 - using discharge tubes

• US Classifications

  • 219 - Electric heating
  • 236 - Automatic temperature and humidity regulation
  • 361 - Electricity: electrical systems and devices