1829646

Information

• Patent Grant
• 1829646

• References
• Source

• Patent Number

  1,829,646

• Date Filed

  Not available

• Date Issued

  Tuesday, October 27, 1931
  93 years ago

• CPC

  • C09B33/18 - Trisazo or higher polyazo dyes
  • C09B31/08 - from a coupling component "C" containing directive hydroxyl and amino groups

• US Classifications

  • 534 - Organic compounds