1856678

Information

• Patent Grant
• 1856678

• References
• Source

• Patent Number

  1,856,678

• Date Filed

  Not available

• Date Issued

  Tuesday, May 3, 1932
  92 years ago

• CPC

  • C22B13/06 - Refining
  • C22B13/08 - Separating metals from lead by precipitating

• US Classifications

  • 266 - Metallurgical apparatus