1971017

Information

• Patent Grant
• 1971017

• References
• Source

• Patent Number

  1,971,017

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1934
  90 years ago

• CPC

  • B64C27/028 - Other constructional elements; Rotor balancing

• US Classifications

  • 244 - Aeronautics and astronautics