1957819

Information

• Patent Grant
• 1957819

• References
• Source

• Patent Number

  1,957,819

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1934
  90 years ago

• CPC

  • C22B25/08 - Refining
  • C22B13/06 - Refining

• US Classifications

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