3677503

Information

• Patent Grant
• 3677503

• References
• Source

• Patent Number

  3,677,503

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1972
  52 years ago

• CPC

  • B64C11/001 - Shrouded propellers
  • B64C11/48 - Units of two or more coaxial propellers
  • B64C27/20 - Rotorcraft characterised by having shrouded rotors
  • B64D39/00 - Refuelling during flight
  • B64D2700/62736 - jet propulsion

• US Classifications

  • 244 - Aeronautics and astronautics