2225459

Information

• Patent Grant
• 2225459

• References
• Source

• Patent Number

  2,225,459

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1940
  84 years ago

• CPC

  • D21B1/025 - Separating pith from fibrous vegetable materials

• US Classifications

  • 209 - Classifying, separating, and assorting solids
  • 162 - Paper making and fiber liberation
  • 241 - Solid material comminution or disintegration