403256

Information

• Patent Grant
• 403256

• References
• Source

• Patent Number

  403,256

• Date Filed

  Not available

• Date Issued

  Tuesday, May 14, 1889
  135 years ago

• CPC

  • B03C1/04 - with the material carriers in the form of trays or with tables

• US Classifications

  • 209 - Classifying, separating, and assorting solids