451918

Information

• Patent Grant
• 451918

• References
• Source

• Patent Number

  451,918

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1891
  133 years ago

• CPC

  • B01D29/0063 - which are open-ended

• US Classifications

  • 209 - Classifying, separating, and assorting solids