2492294

Information

• Patent Grant
• 2492294

• References
• Source

• Patent Number

  2,492,294

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1949
  75 years ago

• CPC

  • B60K11/06 - with air cooling
  • F41H7/035 - Gratings for ventilation openings

• US Classifications

  • 109 - Safes, bank protection, or a related device
  • 454 - Ventilation