2197865

Information

• Patent Grant
• 2197865

• References
• Source

• Patent Number

  2,197,865

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1940
  85 years ago

• CPC

  • B03C7/00 - Separating solids from solids by electrostatic effect
  • C05B11/02 - Pretreatment

• US Classifications

  • 209 - Classifying, separating, and assorting solids