1444485

Information

• Patent Grant
• 1444485

• References
• Source

• Patent Number

  1,444,485

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1923
  101 years ago

• CPC

  • B02C15/123 - with rings and interposed rollers
  • B02C2015/126 - of the plural stage type

• US Classifications

  • 241 - Solid material comminution or disintegration
  • 209 - Classifying, separating, and assorting solids