3668520

Information

• Patent Grant
• 3668520

• References
• Source

• Patent Number

  3,668,520

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1972
  52 years ago

• CPC

  • G01R17/00 - Measuring arrangements involving comparison with a reference value
  • G01R5/22 - Thermoelectric instruments

• US Classifications

  • 324 - Electricity: measuring and testing