2150389

Information

• Patent Grant
• 2150389

• References
• Source

• Patent Number

  2,150,389

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1939
  86 years ago

• CPC

  • D06P3/3273 - preparing azo dyes on the material

• US Classifications

  • 008 - Bleaching and dyeing