3588694

Information

• Patent Grant
• 3588694

• References
• Source

• Patent Number

  3,588,694

• Date Filed

  Not available

• Date Issued

  Monday, June 28, 1971
  53 years ago

• CPC

  • H03H11/16 - Networks for phase shifting
  • E21B41/00 - Equipment or details not covered by groups E21B15/00 - E21B40/00
  • G01R25/00 - Arrangements for measuring phase angle between a voltage and a current, or between voltages or currents
  • H03B21/04 - using several similar stages
  • H03B27/00 - Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs

• US Classifications

  • 324 - Electricity: measuring and testing