3754158

Information

• Patent Grant
• 3754158

• References
• Source

• Patent Number

  3,754,158

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1973
  51 years ago

• CPC

  • H01J29/41 - using secondary emission
  • H01J29/46 - Arrangements of electrodes and associated parts for generating or controlling the ray or beam
  • H01J31/16 - with mask carrying a number of selectively displayable signs

• US Classifications

  • 315 - Electric lamp and discharge devices: systems