3217202

Information

• Patent Grant
• 3217202

• References
• Source

• Patent Number

  3,217,202

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1965
  59 years ago

• CPC

  • H01J19/38 - Control electrodes
  • H01J19/42 - Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
  • H01J2893/0002 - Construction arrangements of electrode systems
  • H01J2893/0017 - Cylindrical, helical or annular grids

• US Classifications

  • 313 - Electric lamp and discharge devices