2219188

Information

• Patent Grant
• 2219188

• References
• Source

• Patent Number

  2,219,188

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1940
  84 years ago

• CPC

  • G01R13/325 - for displaying non-recurrent functions such as transients

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 324 - Electricity: measuring and testing
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems