1615646

Information

• Patent Grant
• 1615646

• References
• Source

• Patent Number

  1,615,646

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1927
  97 years ago

• CPC

  • C09B49/124 - from polycarbocyclic compounds

• US Classifications

  • 568 - Organic compounds
  • 209 - Classifying, separating, and assorting solids