2191040

Information

• Patent Grant
• 2191040

• References
• Source

• Patent Number

  2,191,040

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1940
  85 years ago

• CPC

  • C09B29/12 - of the benzene series
  • D06P3/34 - material containing ester groups
  • Y10S8/921 - Cellulose ester or ether

• US Classifications

  • 008 - Bleaching and dyeing
  • 534 - Organic compounds