1981028

Information

• Patent Grant
• 1981028

• References
• Source

• Patent Number

  1,981,028

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1934
  90 years ago

• CPC

  • C22B19/04 - Obtaining zinc by distilling
  • C22B19/14 - in vertical retorts

• US Classifications

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