2167070

Information

• Patent Grant
• 2167070

• References
• Source

• Patent Number

  2,167,070

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1939
  85 years ago

• CPC

  • C09B1/08 - Dyes containing only OH-groups

• US Classifications

  • 552 - Organic compounds