1691618

Information

• Patent Grant
• 1691618

• References
• Source

• Patent Number

  1,691,618

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1928
  96 years ago

• CPC

  • H02P7/063 - using centrifugal devices
  • Y10S388/927 - Which varies resistance of motor circuit

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 388 - Electricity: motor control systems