3745403

Information

• Patent Grant
• 3745403

• References
• Source

• Patent Number

  3,745,403

• Date Filed

  Not available

• Date Issued

  Tuesday, July 10, 1973
  51 years ago

• CPC

  • H01J1/14 - characterised by the material
  • H01J1/15 - Cathodes heated directly by an electric current
  • H01J2201/2878 - Thin film or film-like

• US Classifications

  • 313 - Electric lamp and discharge devices