2687803

Information

• Patent Grant
• 2687803

• References
• Source

• Patent Number

  2,687,803

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1954
  70 years ago

• CPC

  • B03C7/10 - with material falling in cascades

• US Classifications

  • 209 - Classifying, separating, and assorting solids