2133671

Information

• Patent Grant
• 2133671

• References
• Source

• Patent Number

  2,133,671

• Date Filed

  Not available

• Date Issued

  Tuesday, October 18, 1938
  85 years ago

• CPC

  • C09B29/26 - Amino phenols
  • C09B29/06 - from coupling components containing amino as the only directing group
  • C09B29/08 - Amino benzenes
  • C09B29/28 - Amino naphthols

• US Classifications

  • 008 - Bleaching and dyeing
  • 534 - Organic compounds