2184709

Information

• Patent Grant
• 2184709

• References
• Source

• Patent Number

  2,184,709

• Date Filed

  Not available

• Date Issued

  Tuesday, December 26, 1939
  85 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