2195374

Information

• Patent Grant
• 2195374

• References
• Source

• Patent Number

  2,195,374

• Date Filed

  Not available

• Date Issued

  Tuesday, March 26, 1940
  84 years ago

• CPC

  • B61L5/1836 - using light sources of different colours and seperate optical systems
  • F21V19/04 - with provision for changing light source
  • G08B5/36 - using visible light sources

• US Classifications

  • 340 - Communications: electrical
  • 315 - Electric lamp and discharge devices: systems
  • 362 - Illumination