2197331

Information

• Patent Grant
• 2197331

• References
• Source

• Patent Number

  2,197,331

• Date Filed

  Not available

• Date Issued

  Tuesday, April 16, 1940
  85 years ago

• CPC

  • H01K9/04 - with built-in manually operated switch

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 200 - Electricity: circuit makers and breakers