3719898

Information

• Patent Grant
• 3719898

• References
• Source

• Patent Number

  3,719,898

• Date Filed

  Not available

• Date Issued

  Tuesday, March 6, 1973
  53 years ago

• CPC

  • G01V3/101 - by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
  • H03K17/9505 - Constructional details
  • H03K17/9522 - with a galvanically isolated probe
  • H03K17/954 - controlled by an oscillatory signal

• US Classifications

  • 331 - Oscillators
  • 324 - Electricity: measuring and testing
  • 336 - Inductor devices
  • 340 - Communications: electrical