1970661

Information

• Patent Grant
• 1970661

• References
• Source

• Patent Number

  1,970,661

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1934
  90 years ago

• CPC

  • C09B29/18 - ortho-Hydroxy carbonamides

• US Classifications

  • 534 - Organic compounds
  • 008 - Bleaching and dyeing