3301168

Information

• Patent Grant
• 3301168

• References
• Source

• Patent Number

  3,301,168

• Date Filed

  Not available

• Date Issued

  Tuesday, January 31, 1967
  58 years ago

• CPC

  • A62B13/00 - Special devices for ventilating gasproof shelters
  • F16K17/006 - specially adapted for shelters
  • Y10S454/902 - Air raid shelter ventilation
  • Y10T137/784 - Integral resilient member forms plural valves
  • Y10T137/7869 - Biased open

• US Classifications

  • 454 - Ventilation
  • 055 - Gas separation
  • 137 - Fluid handling