2021481

Information

• Patent Grant
• 2021481

• References
• Source

• Patent Number

  2,021,481

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1935
  89 years ago

• CPC

  • B64C11/00 - Propellers
  • B64D2700/62719 - jet-driven

• US Classifications

  • 416 - Fluid reaction surfaces