2060663

Information

• Patent Grant
• 2060663

• References
• Source

• Patent Number

  2,060,663

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1936
  88 years ago

• CPC

  • H01J19/30 - characterised by the material
  • H01J2893/0021 - carbon

• US Classifications

  • 134 - Cleaning and liquid contact with solids
  • 423 - Chemistry of inorganic compounds
  • 445 - Electric lamp or space discharge component or device manufacturing