2181366

Information

• Patent Grant
• 2181366

• References
• Source

• Patent Number

  2,181,366

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1939
  85 years ago

• CPC

  • H01J17/52 - with one cathode and one anode

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 220 - Receptacles