2183673

Information

• Patent Grant
• 2183673

• References
• Source

• Patent Number

  2,183,673

• Date Filed

  Not available

• Date Issued

  Tuesday, December 19, 1939
  85 years ago

• CPC

  • C09B45/28 - containing copper
  • C09B33/24 - Trisazo dyes of the type

• US Classifications

  • 534 - Organic compounds