3367046

Information

• Patent Grant
• 3367046

• References
• Source

• Patent Number

  3,367,046

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1968
  56 years ago

• CPC

  • G09B9/32 - by projected image
  • G09B9/304 - by using a film

• US Classifications

  • 434 - Education and demonstration
  • 348 - Television
  • 352 - Optics: motion pictures