1421369

Information

• Patent Grant
• 1421369

• References
• Source

• Patent Number

  1,421,369

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1922
  102 years ago

• CPC

  • B64C35/005 - with propellers, rudders or brakes acting in the water

• US Classifications

  • 244 - Aeronautics and astronautics
  • 089 - Ordnance
  • 114 - Ships