1401733

Information

• Patent Grant
• 1401733

• References
• Source

• Patent Number

  1,401,733

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1921
  103 years ago

• CPC

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

• US Classifications

  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures