2593403

Information

• Patent Grant
• 2593403

• References
• Source

• Patent Number

  2,593,403

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1952
  72 years ago

• CPC

  • E21F1/10 - Air doors
  • Y10T16/602 - Weight

• US Classifications

  • 049 - Movable or removable closures
  • 016 - Miscellaneous hardware