3420454

Information

• Patent Grant
• 3420454

• References
• Source

• Patent Number

  3,420,454

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1969
  56 years ago

• CPC

  • D21B1/306 - using microwaves
  • D21B1/345 - Pulpers

• US Classifications

  • 241 - Solid material comminution or disintegration
  • 162 - Paper making and fiber liberation