1240593

Information

• Patent Grant
• 1240593

• References
• Source

• Patent Number

  1,240,593

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1917
  107 years ago

• CPC

  • H04N9/3197 - using light modulating optical valves
  • Y10S353/01 - Slides stacked with surface to surface contact

• US Classifications

  • 353 - Optics: image projectors