3420812

Information

• Patent Grant
• 3420812

• References
• Source

• Patent Number

  3,420,812

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1969
  56 years ago

• CPC

  • C09B62/447 - Azo dyes
  • C09B62/455 - Metal complex azo dyes

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing
  • 558 - Organic compounds
  • 562 - Organic compounds