3576364

Information

• Patent Grant
• 3576364

• References
• Source

• Patent Number

  3,576,364

• Date Filed

  Not available

• Date Issued

  Tuesday, April 27, 1971
  53 years ago

• CPC

  • G09F19/18 - involving the use of optical projection means
  • G02F1/1313 - specially adapted for a particular application
  • G09F13/00 - Illuminated signs Luminous advertising
  • G09F19/10 - Devices demonstrating the action of an article to be advertised

• US Classifications

  • 353 - Optics: image projectors
  • 040 - Card, picture, or sign exhibiting
  • 252 - Compositions
  • 345 - Computer graphics processing and selective visual display systems
  • 349 - Liquid crystal cells, elements and systems
  • 352 - Optics: motion pictures