2700425

Information

• Patent Grant
• 2700425

• References
• Source

• Patent Number

  2,700,425

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1955
  70 years ago

• CPC

  • B64C39/006 - about a vertical axis
  • B64C29/0025 - the propellers being fixed relative to the fuselage

• US Classifications

  • 416 - Fluid reaction surfaces