1834558

Information

• Patent Grant
• 1834558

• References
• Source

• Patent Number

  1,834,558

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1931
  93 years ago

• CPC

  • B64C39/006 - about a vertical axis
  • B64C23/08 - using Magnus effect

• US Classifications

  • 416 - Fluid reaction surfaces
  • 244 - Aeronautics and astronautics