2793291

Information

• Patent Grant
• 2793291

• References
• Source

• Patent Number

  2,793,291

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1957
  69 years ago

• CPC

  • G05D23/2237 - using discharge tubes

• US Classifications

  • 331 - Oscillators
  • 236 - Automatic temperature and humidity regulation
  • 361 - Electricity: electrical systems and devices
  • 431 - Combustion