2197293

Information

• Patent Grant
• 2197293

• References
• Source

• Patent Number

  2,197,293

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1940
  85 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

• US Classifications

  • 416 - Fluid reaction surfaces