1690481

Information

• Patent Grant
• 1690481

• References
• Source

• Patent Number

  1,690,481

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1928
  96 years ago

• CPC

  • D06P3/42 - using dispersed dyestuffs
  • D06P3/44 - preparing azo dyes on the material
  • Y10S8/921 - Cellulose ester or ether

• US Classifications

  • 008 - Bleaching and dyeing