3748769

Information

• Patent Grant
• 3748769

• References
• Source

• Patent Number

  3,748,769

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1973
  51 years ago

• CPC

  • G02B6/0091 - of the light source relative to the light guide
  • G09F11/12 - the display elements being carried by endless belts, chains, or the like
  • G09F13/00 - Illuminated signs Luminous advertising
  • G09F19/00 - Miscellaneous advertising or display means not provided for elsewhere
  • G09F2013/1863 - Layer with different refractive index
  • G09F2013/1877 - Stand-like

• US Classifications

  • 040 - Card, picture, or sign exhibiting