3859550

Information

• Patent Grant
• 3859550

• References
• Source

• Patent Number

  3,859,550

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1975
  50 years ago

• CPC

  • H01J21/36 - Tubes with flat electrodes

• US Classifications

  • 313 - Electric lamp and discharge devices