1771847

Information

• Patent Grant
• 1771847

• References
• Source

• Patent Number

  1,771,847

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1930
  94 years ago

• CPC

  • B64D35/04 - characterised by the transmission driving a plurality of propellers or rotors
  • B64D2700/62807 - Several non-coaxial propellers driven by only one engine
  • Y10T74/19098 - Helical

• US Classifications

  • 192 - Clutches and power-stop control
  • 074 - Machine element or mechanism
  • 244 - Aeronautics and astronautics
  • 416 - Fluid reaction surfaces