2813266

Information

• Patent Grant
• 2813266

• References
• Source

• Patent Number

  2,813,266

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1957
  67 years ago

• CPC

  • G08B5/36 - using visible light sources
  • G01R13/405 - using a plurality of active, i.e. light emitting
  • G09F9/46 - in which the desired character is selected from a number of characters arranged one behind the other

• US Classifications

  • 340 - Communications: electrical
  • 040 - Card, picture, or sign exhibiting