2939764

Information

• Patent Grant
• 2939764

• References
• Source

• Patent Number

  2,939,764

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1960
  64 years ago

• CPC

  • C01F7/0613 - Pretreatment of the minerals

• US Classifications

  • 423 - Chemistry of inorganic compounds