1244983

Information

• Patent Grant
• 1244983

• References
• Source

• Patent Number

  1,244,983

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1917
  107 years ago

• CPC

  • H02K19/32 - for pole-changing
  • Y10T307/852 - Frequency

• US Classifications

  • 318 - Electricity: motive power systems
  • 307 - Electrical transmission or interconnection systems