3002121

Information

• Patent Grant
• 3002121

• References
• Source

• Patent Number

  3,002,121

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1961
  63 years ago

• CPC

  • H05B33/20 - characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
  • G01R13/402 - using active, i.e. light-emitting display devices

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 250 - Radiant energy
  • 324 - Electricity: measuring and testing