3225256

Information

• Patent Grant
• 3225256

• References
• Source

• Patent Number

  3,225,256

• Date Filed

  Not available

• Date Issued

  Tuesday, December 21, 1965
  59 years ago

• CPC

  • H02H3/307 - involving comparison of quantities derived from a plurality of phases
  • H02H3/302 - involving phase comparison
  • H03K5/08 - by limiting by thresholding by slicing

• US Classifications

  • 361 - Electricity: electrical systems and devices