3809877

Information

• Patent Grant
• 3809877

• References
• Source

• Patent Number

  3,809,877

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • G01R13/405 - using a plurality of active, i.e. light emitting
  • Y10S116/05 - using light guides
  • Y10S116/41 - Color comparison

• US Classifications

  • 362 - Illumination
  • 116 - Signals and indicators