3838412

Information

• Patent Grant
• 3838412

• References
• Source

• Patent Number

  3,838,412

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • H04N5/70 - Circuit details for electroluminescent devices
  • G09G3/004 - to give the appearance of moving signs
  • G09G3/24 - using incandescent filaments
  • H04L25/45 - using electronic distributors

• US Classifications

  • 345 - Computer graphics processing and selective visual display systems
  • 340 - Communications: electrical
  • 348 - Television
  • 398 - Optical communications