2166133

Information

• Patent Grant
• 2166133

• References
• Source

• Patent Number

  2,166,133

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1939
  85 years ago

• CPC

  • A61K38/015 - from keratin

• US Classifications

  • 530 - Chemistry: natural resins or derivatives
  • 435 - Chemistry: molecular biology and microbiology