1864137

Information

• Patent Grant
• 1864137

• References
• Source

• Patent Number

  1,864,137

• Date Filed

  Not available

• Date Issued

  Tuesday, June 21, 1932
  92 years ago

• CPC

  • B64C27/028 - Other constructional elements; Rotor balancing

• US Classifications

  • 244 - Aeronautics and astronautics
  • 416 - Fluid reaction surfaces