3740309

Information

• Patent Grant
• 3740309

• References
• Source

• Patent Number

  3,740,309

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1973
  51 years ago

• CPC

  • D21C11/02 - of acid, neutral or alkaline sulfite lye

• US Classifications

  • 162 - Paper making and fiber liberation
  • 423 - Chemistry of inorganic compounds