3620727

Information

• Patent Grant
• 3620727

• References
• Source

• Patent Number

  3,620,727

• Date Filed

  Not available

• Date Issued

  Tuesday, November 16, 1971
  53 years ago

• CPC

  • G03G13/01 - for multicoloured copies
  • G03F3/101 - Colour or tonal value checking by non-photographic means or by means other than using non-impact printing methods or duplicating or marking methods covered by B41M5/00

• US Classifications

  • 356 - Optics: measuring and testing
  • 430 - Radiation imagery chemistry: process, composition, or product thereof