2257277

Information

• Patent Grant
• 2257277

• References
• Source

• Patent Number

  2,257,277

• Date Filed

  Not available

• Date Issued

  Tuesday, September 30, 1941
  83 years ago

• CPC

  • B64D17/54 - automatic
  • B64D2700/6257 - Opening induced by means other than airstream

• US Classifications

  • 244 - Aeronautics and astronautics