3232208

Information

• Patent Grant
• 3232208

• References
• Source

• Patent Number

  3,232,208

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1966
  60 years ago

• CPC

  • F24F13/10 - movable
  • A62B13/00 - Special devices for ventilating gasproof shelters
  • F16K3/26 - with fluid passages in the valve member
  • F16K17/006 - specially adapted for shelters
  • Y10S454/902 - Air raid shelter ventilation
  • Y10T137/7869 - Biased open

• US Classifications

  • 454 - Ventilation
  • 137 - Fluid handling