1328631

Information

• Patent Grant
• 1328631

• References
• Source

• Patent Number

  1,328,631

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1920
  105 years ago

• CPC

  • H02P1/025 - Protection against starting if starting resistor is not at zero position

• US Classifications

  • 318 - Electricity: motive power systems