1903962

Information

• Patent Grant
• 1903962

• References
• Source

• Patent Number

  1,903,962

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1933
  92 years ago

• CPC

  • D21C3/22 - Other features of pulping processes
  • Y10S162/02 - Chip soaking

• US Classifications

  • 162 - Paper making and fiber liberation