1374187

Information

• Patent Grant
• 1374187

• References
• Source

• Patent Number

  1,374,187

• Date Filed

  Not available

• Date Issued

  Tuesday, April 12, 1921
  104 years ago

• CPC

  • D21H11/08 - Mechanical or thermomechanical pulp
  • Y10T442/53 - Including particulate material other than fiber

• US Classifications

  • 162 - Paper making and fiber liberation
  • 442 - Fabric