3644171

Information

• Patent Grant
• 3644171

• References
• Source

• Patent Number

  3,644,171

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • D21C1/00 - Pretreatment of the finely-divided materials before digesting
  • Y10S162/12 - Seasoning

• US Classifications

  • 162 - Paper making and fiber liberation
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing