3714490

Information

• Patent Grant
• 3714490

• References
• Source

• Patent Number

  3,714,490

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1973
  52 years ago

• CPC

  • H01J29/26 - with superimposed luminescent layers

• US Classifications

  • 313 - Electric lamp and discharge devices