2185224

Information

• Patent Grant
• 2185224

• References
• Source

• Patent Number

  2,185,224

• Date Filed

  Not available

• Date Issued

  Tuesday, January 2, 1940
  85 years ago

• CPC

  • C05B11/02 - Pretreatment

• US Classifications

  • 209 - Classifying, separating, and assorting solids