2810225

Information

• Patent Grant
• 2810225

• References
• Source

• Patent Number

  2,810,225

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1957
  67 years ago

• CPC

  • G02B6/0021 - for housing at least a part of the light source
  • G02B6/0033 - Means for improving the coupling-out of light from the light guide
  • G09F2013/185 - Embossed marks

• US Classifications

  • 040 - Card, picture, or sign exhibiting