1457436

Information

• Patent Grant
• 1457436

• References
• Source

• Patent Number

  1,457,436

• Date Filed

  Not available

• Date Issued

  Tuesday, June 5, 1923
  102 years ago

• CPC

  • C01B17/44 - by reduction of sulfates
  • C01B17/28 - with reducing gases
  • C01G1/12 - Sulfides

• US Classifications

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