1823946

Information

• Patent Grant
• 1823946

• References
• Source

• Patent Number

  1,823,946

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1931
  93 years ago

• CPC

  • C09B3/50 - Dibenzopyrenequinones
  • D06P1/24 - Anthraquinone dyes or anthracene nucleus containing vat dyes

• US Classifications

  • 008 - Bleaching and dyeing