2109372

Information

• Patent Grant
• 2109372

• References
• Source

• Patent Number

  2,109,372

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1938
  87 years ago

• CPC

  • D06P1/6426 - Heterocyclic compounds
  • D06P3/3246 - using vat, sulfur or indigo dyes

• US Classifications

  • 008 - Bleaching and dyeing