2175187

Information

• Patent Grant
• 2175187

• References
• Source

• Patent Number

  2,175,187

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1939
  85 years ago

• CPC

  • C09B33/24 - Trisazo dyes of the type

• US Classifications

  • 534 - Organic compounds