1548599

Information

• Patent Grant
• 1548599

• References
• Source

• Patent Number

  1,548,599

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1925
  99 years ago

• CPC

  • B64D35/06 - the propellers or rotors being counter-rotating
  • B64D2700/62824 - co-rotating

• US Classifications

  • 060 - Power plants
  • 244 - Aeronautics and astronautics
  • 416 - Fluid reaction surfaces