3767991

Information

• Patent Grant
• 3767991

• References
• Source

• Patent Number

  3,767,991

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1973
  51 years ago

• CPC

  • G08C19/48 - being the type with a three-phase stator and a rotor fed by constant-frequency ac

• US Classifications

  • 318 - Electricity: motive power systems