2704252

Information

• Patent Grant
• 2704252

• References
• Source

• Patent Number

  2,704,252

• Date Filed

  Not available

• Date Issued

  Tuesday, March 15, 1955
  69 years ago

• CPC

  • G03C7/30 - Colour processes using colour-coupling substances Materials therefor Preparing or processing such materials
  • G03F3/04 - by photographic means
  • G03F5/02 - by projection methods
  • G03F5/04 - changing the screen effect
  • G03F5/20 - using screens for gravure printing

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof