3431048

Information

• Patent Grant
• 3431048

• References
• Source

• Patent Number

  3,431,048

• Date Filed

  Not available

• Date Issued

  Tuesday, March 4, 1969
  56 years ago

• CPC

  • G03B33/00 - Colour photography, other than mere exposure or projection of a colour film
  • Y10S348/902 - Photochromic

• US Classifications

  • 353 - Optics: image projectors
  • 250 - Radiant energy
  • 348 - Television
  • 355 - Photocopying
  • 359 - Optical: systems and elements