156093

Information

• Patent Grant
• 156093

• References
• Source

• Patent Number

  156,093

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1874
  150 years ago

• CPC

  • C22B15/0013 - by roasting
  • C22B15/0002 - Preliminary treatment

• US Classifications

  • 423 - Chemistry of inorganic compounds