3733995

Information

• Patent Grant
• 3733995

• References
• Source

• Patent Number

  3,733,995

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1973
  51 years ago

• CPC

  • F24F13/072 - of elongated shape
  • E04B2009/026 - the supporting ceiling grid acting as air diffusers

• US Classifications

  • 454 - Ventilation
  • 248 - Supports