3861855

Information

• Patent Grant
• 3861855

• References
• Source

• Patent Number

  3,861,855

• Date Filed

  Not available

• Date Issued

  Tuesday, January 21, 1975
  50 years ago

• CPC

  • F23N5/08 - using light-sensitive elements
  • F23N2035/02 - Air or combustion gas valves or dampers

• US Classifications

  • 431 - Combustion
  • 236 - Automatic temperature and humidity regulation