3325728

Information

• Patent Grant
• 3325728

• References
• Source

• Patent Number

  3,325,728

• Date Filed

  Not available

• Date Issued

  Tuesday, June 13, 1967
  57 years ago

• CPC

  • H03F3/02 - with tubes only
  • G01N27/025 - a current being generated within the material by induction

• US Classifications

  • 324 - Electricity: measuring and testing