3273274

Information

• Patent Grant
• 3273274

• References
• Source

• Patent Number

  3,273,274

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1966
  58 years ago

• CPC

  • G02B6/0091 - of the light source relative to the light guide
  • G02B6/0031 - Reflecting element, sheet or layer
  • G02B6/0076 - Stacked arrangements of multiple light guides of the same or different cross-sectional area
  • G09F9/46 - in which the desired character is selected from a number of characters arranged one behind the other

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 362 - Illumination