1856040

Information

• Patent Grant
• 1856040

• References
• Source

• Patent Number

  1,856,040

• Date Filed

  Not available

• Date Issued

  Tuesday, April 26, 1932
  94 years ago

• CPC

  • C01B17/82 - of sulfuric acid using a nitrogen oxide process

• US Classifications

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