3121035

Information

• Patent Grant
• 3121035

• References
• Source

• Patent Number

  3,121,035

• Date Filed

  Not available

• Date Issued

  Tuesday, February 11, 1964
  61 years ago

• CPC

  • H01B3/025 - Other inorganic material
  • H01B1/08 - oxides
  • H01J1/24 - Insulating layer or body located between heater and emissive material

• US Classifications

  • 148 - Metal treatment
  • 174 - Electricity: conductors and insulators
  • 257 - Active solid-state devices
  • 313 - Electric lamp and discharge devices