2376331

Information

• Patent Grant
• 2376331

• References
• Source

• Patent Number

  2,376,331

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1945
  79 years ago

• CPC

  • F41H7/035 - Gratings for ventilation openings

• US Classifications

  • 089 - Ordnance
  • 454 - Ventilation