2954509

Information

• Patent Grant
• 2954509

• References
• Source

• Patent Number

  2,954,509

• Date Filed

  Not available

• Date Issued

  Tuesday, September 27, 1960
  64 years ago

• CPC

  • G05F1/42 - discharge tubes only
  • H05B39/083 - by the variation-rate of light intensity

• US Classifications

  • 315 - Electric lamp and discharge devices: systems