2156245

Information

• Patent Grant
• 2156245

• References
• Source

• Patent Number

  2,156,245

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1939
  86 years ago

• CPC

  • B03D1/021 - for treatment of phosphate ores
  • C05B11/02 - Pretreatment

• US Classifications

  • 209 - Classifying, separating, and assorting solids