2180153

Information

• Patent Grant
• 2180153

• References
• Source

• Patent Number

  2,180,153

• Date Filed

  Not available

• Date Issued

  Tuesday, November 14, 1939
  85 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