1397497

Information

• Patent Grant
• 1397497

• References
• Source

• Patent Number

  1,397,497

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1921
  103 years ago

• CPC

  • C01B17/28 - with reducing gases
  • C22B5/00 - General methods of reducing to metals

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing