3651750

Information

• Patent Grant
• 3651750

• References
• Source

• Patent Number

  3,651,750

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1972
  52 years ago

• CPC

  • F24F7/02 - Roof ventilation
  • F23H13/00 - Grates not covered by any preceding group
  • F23H2700/009 - Grates specially adapted for incinerators
  • Y10T16/5389 - torsion spring
  • Y10T137/7922 - Spring biased

• US Classifications

  • 454 - Ventilation
  • 016 - Miscellaneous hardware
  • 137 - Fluid handling