3657901

Information

• Patent Grant
• 3657901

• References
• Source

• Patent Number

  3,657,901

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  52 years ago

• CPC

  • F24F13/072 - of elongated shape
  • F24F3/044 - Systems in which all treatment is given in the central station
  • E04B2009/026 - the supporting ceiling grid acting as air diffusers

• US Classifications

  • 062 - Refrigeration
  • 165 - Heat exchange