1581143

Information

• Patent Grant
• 1581143

• References
• Source

• Patent Number

  1,581,143

• Date Filed

  Not available

• Date Issued

  Tuesday, April 20, 1926
  98 years ago

• CPC

  • H02P1/34 - by progressive reduction of impedance in secondary circuit
  • Y10T307/799 - Inertia or acceleration
  • Y10T307/951 - With time delay or retardation means

• US Classifications

  • 318 - Electricity: motive power systems
  • 307 - Electrical transmission or interconnection systems
  • 361 - Electricity: electrical systems and devices