2458401

Information

• Patent Grant
• 2458401

• References
• Source

• Patent Number

  2,458,401

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1949
  76 years ago

• CPC

  • B61L5/1818 - using mobile coloured screen

• US Classifications

  • 362 - Illumination
  • 340 - Communications: electrical
  • 359 - Optical: systems and elements