1804532

Information

• Patent Grant
• 1804532

• References
• Source

• Patent Number

  1,804,532

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1931
  93 years ago

• CPC

  • C09B5/04 - Pyrazolanthrones

• US Classifications

  • 008 - Bleaching and dyeing
  • 548 - Organic compounds