3685427

Information

• Patent Grant
• 3685427

• References
• Source

• Patent Number

  3,685,427

• Date Filed

  Not available

• Date Issued

  Tuesday, August 22, 1972
  53 years ago

• CPC

  • F24F13/075 - having parallel rods or lamellae directing the outflow
  • Y10T74/2146 - Longitudinal springs

• US Classifications

  • 454 - Ventilation
  • 074 - Machine element or mechanism