2711681

Information

• Patent Grant
• 2711681

• References
• Source

• Patent Number

  2,711,681

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1955
  69 years ago

• CPC

  • F24F3/02 - characterised by the pressure or velocity of the primary air
  • F24F1/00 - Rooms units

• US Classifications

  • 454 - Ventilation
  • 165 - Heat exchange
  • 200 - Electricity: circuit makers and breakers
  • 236 - Automatic temperature and humidity regulation