1981027

Information

• Patent Grant
• 1981027

• References
• Source

• Patent Number

  1,981,027

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1934
  90 years ago

• CPC

  • D06P3/401 - using acid dyes
  • D06P1/628 - Compounds containing nitrogen
  • D06P3/62 - using direct dyes
  • D06P3/8223 - mixtures of fibres containing hydroxyl and ester groups

• US Classifications

  • 008 - Bleaching and dyeing