2420631

Information

• Patent Grant
• 2420631

• References
• Source

• Patent Number

  2,420,631

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1947
  77 years ago

• CPC

  • G03C1/831 - Azo dyes
  • G03C7/29 - Azo dyes therefor

• US Classifications

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