3421804

Information

• Patent Grant
• 3421804

• References
• Source

• Patent Number

  3,421,804

• Date Filed

  Not available

• Date Issued

  Tuesday, January 14, 1969
  56 years ago

• CPC

  • H01J61/14 - having one or more carbon compounds as the principal constituents
  • H01J9/395 - Filling vessels

• US Classifications

  • 445 - Electric lamp or space discharge component or device manufacturing