2128256

Information

• Patent Grant
• 2128256

• References
• Source

• Patent Number

  2,128,256

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1938
  86 years ago

• CPC

  • C09B62/447 - Azo dyes
  • C09B39/00 - Other azo dyes prepared by diazotising and coupling

• US Classifications

  • 534 - Organic compounds