3070721

Information

• Patent Grant
• 3070721

• References
• Source

• Patent Number

  3,070,721

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1962
  62 years ago

• CPC

  • H01J19/30 - characterised by the material
  • H01J2893/0019 - Chemical composition and manufacture

• US Classifications

  • 313 - Electric lamp and discharge devices