3717545

Information

• Patent Grant
• 3717545

• References
• Source

• Patent Number

  3,717,545

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1973
  51 years ago

• CPC

  • D21C11/02 - of acid, neutral or alkaline sulfite lye
  • Y10S210/928 - Paper mill waste

• US Classifications

  • 162 - Paper making and fiber liberation
  • 210 - Liquid purification or separation