1970083

Information

• Patent Grant
• 1970083

• References
• Source

• Patent Number

  1,970,083

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1934
  90 years ago

• CPC

  • C09B5/54 - Preparation from 2-amino-anthrahydroquinones
  • C09B9/02 - of anthracene dyes

• US Classifications

  • 552 - Organic compounds