3485626

Information

• Patent Grant
• 3485626

• References
• Source

• Patent Number

  3,485,626

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1969
  55 years ago

• CPC

  • G03F5/06 - changing the diaphragm effect
  • G03B27/73 - Controlling exposure by variation of spectral composition
  • G03C7/04 - Additive processes using colour screens Materials therefor Preparing or processing such materials

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 359 - Optical: systems and elements