2938279

Information

• Patent Grant
• 2938279

• References
• Source

• Patent Number

  2,938,279

• Date Filed

  Not available

• Date Issued

  Tuesday, May 31, 1960
  64 years ago

• CPC

  • G09B9/304 - by using a film
  • G03B21/00 - Projectors or projection-type viewers Accessories therefor

• US Classifications

  • 434 - Education and demonstration
  • 353 - Optics: image projectors
  • 359 - Optical: systems and elements