2161443

Information

• Patent Grant
• 2161443

• References
• Source

• Patent Number

  2,161,443

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1939
  85 years ago

• CPC

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

• US Classifications

  • 315 - Electric lamp and discharge devices: systems