1897669

Information

• Patent Grant
• 1897669

• References
• Source

• Patent Number

  1,897,669

• Date Filed

  Not available

• Date Issued

  Tuesday, February 14, 1933
  92 years ago

• CPC

  • B64C9/146 - at an other wing location than the rear or the front

• US Classifications

  • 244 - Aeronautics and astronautics