399581

Information

• Patent Grant
• 399581

• References
• Source

• Patent Number

  399,581

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1889
  135 years ago

• CPC

  • C09B35/40 - the component K being a dihydroxy or polyhydroxy compound

• US Classifications

  • 534 - Organic compounds