2181669

Information

• Patent Grant
• 2181669

• References
• Source

• Patent Number

  2,181,669

• Date Filed

  Not available

• Date Issued

  Tuesday, November 28, 1939
  85 years ago

• CPC

  • C01F7/0633 - characterised by the use of additives
  • C01F7/46 - Purification of aluminium oxide, aluminium hydroxide or aluminates

• US Classifications

  • 423 - Chemistry of inorganic compounds