2197886

Information

• Patent Grant
• 2197886

• References
• Source

• Patent Number

  2,197,886

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1940
  84 years ago

• CPC

  • E06B7/02 - for providing ventilation
  • F24F6/105 - using the heat of lamps
  • F24F7/00 - Ventilation

• US Classifications

  • 454 - Ventilation
  • 239 - Fluid sprinkling, spraying, and diffusing
  • 261 - Gas and liquid contact apparatus