2227664

Information

• Patent Grant
• 2227664

• References
• Source

• Patent Number

  2,227,664

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1941
  83 years ago

• CPC

  • C09B5/26 - Carbazoles of the anthracene series

• US Classifications

  • 548 - Organic compounds