3528004

Information

• Patent Grant
• 3528004

• References
• Source

• Patent Number

  3,528,004

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1970
  54 years ago

• CPC

  • G01V3/101 - by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
  • H03K17/9545 - with variable frequency

• US Classifications

  • 324 - Electricity: measuring and testing