621687

Information

• Patent Grant
• 621687

• References
• Source

• Patent Number

  621,687

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1899
  126 years ago

• CPC

  • B64C3/44 - Varying camber
  • F03D3/007 - using the Magnus effect

• US Classifications

  • 416 - Fluid reaction surfaces