2206271

Information

• Patent Grant
• 2206271

• References
• Source

• Patent Number

  2,206,271

• Date Filed

  Not available

• Date Issued

  Tuesday, July 2, 1940
  84 years ago

• CPC

  • H01J17/58 - with more than one cathode or anode

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 174 - Electricity: conductors and insulators