1793138

Information

• Patent Grant
• 1793138

• References
• Source

• Patent Number

  1,793,138

• Date Filed

  Not available

• Date Issued

  Tuesday, February 17, 1931
  93 years ago

• CPC

  • C09B5/04 - Pyrazolanthrones

• US Classifications

  • 546 - Organic compounds
  • 548 - Organic compounds