3920405

Information

• Patent Grant
• 3920405

• References
• Source

• Patent Number

  3,920,405

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • C01F7/746 - After-treatment

• US Classifications

  • 023 - Chemistry: physical processes
  • 423 - Chemistry of inorganic compounds