1351113

Information

• Patent Grant
• 1351113

• References
• Source

• Patent Number

  1,351,113

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1920
  104 years ago

• CPC

  • B61L5/1836 - using light sources of different colours and seperate optical systems

• US Classifications

  • 362 - Illumination