3662209

Information

• Patent Grant
• 3662209

• References
• Source

• Patent Number

  3,662,209

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1972
  52 years ago

• CPC

  • H01J21/36 - Tubes with flat electrodes

• US Classifications

  • 313 - Electric lamp and discharge devices