2218668

Information

• Patent Grant
• 2218668

• References
• Source

• Patent Number

  2,218,668

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1940
  84 years ago

• CPC

  • G01R11/42 - Circuitry therefor
  • G01R11/36 - Induction meters

• US Classifications

  • 324 - Electricity: measuring and testing