1857985

Information

• Patent Grant
• 1857985

• References
• Source

• Patent Number

  1,857,985

• Date Filed

  Not available

• Date Issued

  Tuesday, May 10, 1932
  92 years ago

• CPC

  • D21C1/10 - Physical methods for facilitating impregnation
  • Y10S162/02 - Chip soaking

• US Classifications

  • 162 - Paper making and fiber liberation