2899859

Information

• Patent Grant
• 2899859

• References
• Source

• Patent Number

  2,899,859

• Date Filed

  Not available

• Date Issued

  Tuesday, August 18, 1959
  65 years ago

• CPC

  • G01J1/124 - based on the comparison of the intensity of measured light with a comparison source or comparison illuminated surface
  • H04N5/84 - using optical recording

• US Classifications

  • 356 - Optics: measuring and testing
  • 352 - Optics: motion pictures
  • 355 - Photocopying
  • 386 - Motion video signal processing for recording or reproducing
  • 396 - Photography