3332175

Information

• Patent Grant
• 3332175

• References
• Source

• Patent Number

  3,332,175

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1967
  57 years ago

• CPC

  • E06B5/125 - Closures for relieving excess pressure inside the building
  • E06B5/12 - against air pressure, explosion, or gas

• US Classifications

  • 052 - Static structures
  • 454 - Ventilation