1811576

Information

• Patent Grant
• 1811576

• References
• Source

• Patent Number

  1,811,576

• Date Filed

  Not available

• Date Issued

  Tuesday, June 23, 1931
  93 years ago

• CPC

  • D06P3/44 - preparing azo dyes on the material

• US Classifications

  • 008 - Bleaching and dyeing