1397196

Information

• Patent Grant
• 1397196

• References
• Source

• Patent Number

  1,397,196

• Date Filed

  Not available

• Date Issued

  Tuesday, November 15, 1921
  103 years ago

• CPC

  • B64C11/00 - Propellers
  • B64D2700/62701 - operated by hydraulic power

• US Classifications

  • 244 - Aeronautics and astronautics