1467537

Information

• Patent Grant
• 1467537

• References
• Source

• Patent Number

  1,467,537

• Date Filed

  Not available

• Date Issued

  Tuesday, September 11, 1923
  102 years ago

• CPC

  • B64D35/06 - the propellers or rotors being counter-rotating
  • B64D2700/62815 - Double propellers

• US Classifications

  • 416 - Fluid reaction surfaces