2213647

Information

• Patent Grant
• 2213647

• References
• Source

• Patent Number

  2,213,647

• Date Filed

  Not available

• Date Issued

  Tuesday, September 3, 1940
  84 years ago

• CPC

  • C09B33/18 - Trisazo or higher polyazo dyes
  • C09B45/24 - Disazo or polyazo compounds

• US Classifications

  • 534 - Organic compounds