2158628

Information

• Patent Grant
• 2158628

• References
• Source

• Patent Number

  2,158,628

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1939
  85 years ago

• CPC

  • G05D23/24 - the sensing element having a resistance varying with temperature
  • G05D23/1912 - whose output amplitude can take more than two discrete values
  • Y10S200/40 - Moisture

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 200 - Electricity: circuit makers and breakers