3397957

Information

• Patent Grant
• 3397957

• References
• Source

• Patent Number

  3,397,957

• Date Filed

  Not available

• Date Issued

  Tuesday, August 20, 1968
  56 years ago

• CPC

  • D21C11/02 - of acid, neutral or alkaline sulfite lye
  • C01B17/62 - Methods of preparing sulfites in general
  • Y10S423/03 - Papermaking liquor

• US Classifications

  • 423 - Chemistry of inorganic compounds