3402655

Information

• Patent Grant
• 3402655

• References
• Source

• Patent Number

  3,402,655

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1968
  56 years ago

• CPC

  • A62B13/00 - Special devices for ventilating gasproof shelters
  • Y10S454/902 - Air raid shelter ventilation

• US Classifications

  • 454 - Ventilation