3088861

Information

• Patent Grant
• 3088861

• References
• Source

• Patent Number

  3,088,861

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1963
  61 years ago

• CPC

  • D21C3/266 - the same pulping agent being used in all stages
  • D21C3/10 - magnesium bisulfite

• US Classifications

  • 162 - Paper making and fiber liberation