1904548

Information

• Patent Grant
• 1904548

• References
• Source

• Patent Number

  1,904,548

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1933
  91 years ago

• CPC

  • C01D5/04 - Preparation of sulfates with the aid of sulfurous acid or sulfites

• US Classifications

  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
  • 432 - Heating