843909

Information

• Patent Grant
• 843909

• References
• Source

• Patent Number

  843,909

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1907
  118 years ago

• CPC

  • F24F11/08 - for controlling the primary treatment of air
  • Y10S138/04 - Air conditioning
  • Y10S236/13 - Humidithermostat
  • Y10S261/03 - Air cooling
  • Y10S261/34 - Automatic humidity regulation
  • Y10S261/43 - Air coolers

• US Classifications

  • 165 - Heat exchange
  • 005 - Beds
  • 034 - Drying and gas or vapor contact with solids
  • 062 - Refrigeration
  • 126 - Stoves and furnaces
  • 138 - Pipes and tubular conduits
  • 236 - Automatic temperature and humidity regulation
  • 237 - Heating systems
  • 261 - Gas and liquid contact apparatus
  • 454 - Ventilation