3790946

Information

• Patent Grant
• 3790946

• References
• Source

• Patent Number

  3,790,946

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1974
  50 years ago

• CPC

  • G09F9/307 - being incandescent filaments

• US Classifications

  • 345 - Computer graphics processing and selective visual display systems
  • 040 - Card, picture, or sign exhibiting
  • 340 - Communications: electrical