993020

Information

• Patent Grant
• 993020

• References
• Source

• Patent Number

  993,020

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1911
  113 years ago

• CPC

  • C09B29/0846 - substituted by heterocyclic ring linked directly to the benzene ring

• US Classifications

  • 534 - Organic compounds
  • 548 - Organic compounds