1243681

Information

• Patent Grant
• 1243681

• References
• Source

• Patent Number

  1,243,681

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1917
  107 years ago

• CPC

  • C22B11/023 - from pyrometallurgical residues

• US Classifications

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