3838811

Information

• Patent Grant
• 3838811

• References
• Source

• Patent Number

  3,838,811

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1974
  50 years ago

• CPC

  • F23N5/143 - using electronic means
  • G05D23/1912 - whose output amplitude can take more than two discrete values
  • G05D23/24 - the sensing element having a resistance varying with temperature

• US Classifications

  • 236 - Automatic temperature and humidity regulation