1862828

Information

• Patent Grant
• 1862828

• References
• Source

• Patent Number

  1,862,828

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1932
  92 years ago

• CPC

  • C22B19/02 - Preliminary treatment of ores Preliminary refining of zinc oxide
  • C22B1/04 - Blast roasting

• US Classifications

  • 423 - Chemistry of inorganic compounds