1774686

Information

• Patent Grant
• 1774686

• References
• Source

• Patent Number

  1,774,686

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1930
  93 years ago

• CPC

  • C22B11/12 - Apparatus therefor

• US Classifications

  • 209 - Classifying, separating, and assorting solids