1854557

Information

• Patent Grant
• 1854557

• References
• Source

• Patent Number

  1,854,557

• Date Filed

  Not available

• Date Issued

  Tuesday, April 19, 1932
  92 years ago

• CPC

  • D01C1/04 - Bacteriological retting

• US Classifications

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