1522698

Information

• Patent Grant
• 1522698

• References
• Source

• Patent Number

  1,522,698

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1925
  100 years ago

• CPC

  • C01F7/0693 - from waste-like raw materials

• US Classifications

  • 423 - Chemistry of inorganic compounds