2576849

Information

• Patent Grant
• 2576849

• References
• Source

• Patent Number

  2,576,849

• Date Filed

  Not available

• Date Issued

  Tuesday, November 27, 1951
  73 years ago

• CPC

  • B61L5/1818 - using mobile coloured screen

• US Classifications

  • 340 - Communications: electrical
  • 246 - Railway switches and signals
  • 359 - Optical: systems and elements
  • 362 - Illumination