3649901

Information

• Patent Grant
• 3649901

• References
• Source

• Patent Number

  3,649,901

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  52 years ago

• CPC

  • H04N3/20 - Prevention of damage to cathode-ray tubes in the event of failure of scanning
  • H02H7/1209 - for converters using only discharge tubes

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 348 - Television