2658898

Information

• Patent Grant
• 2658898

• References
• Source

• Patent Number

  2,658,898

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1953
  71 years ago

• CPC

  • C09B5/42 - Pyridino anthraquinones

• US Classifications

  • 546 - Organic compounds