1771902

Information

• Patent Grant
• 1771902

• References
• Source

• Patent Number

  1,771,902

• Date Filed

  Not available

• Date Issued

  Tuesday, July 29, 1930
  95 years ago

• CPC

  • H02P1/34 - by progressive reduction of impedance in secondary circuit

• US Classifications

  • 318 - Electricity: motive power systems