3438494

Information

• Patent Grant
• 3438494

• References
• Source

• Patent Number

  3,438,494

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1969
  55 years ago

• CPC

  • B03D1/01 - containing nitrogen
  • B03D2203/04 - Non-sulfide ores
  • Y10S209/901 - Froth flotation copper

• US Classifications

  • 209 - Classifying, separating, and assorting solids