2240921

Information

• Patent Grant
• 2240921

• References
• Source

• Patent Number

  2,240,921

• Date Filed

  Not available

• Date Issued

  Tuesday, May 6, 1941
  83 years ago

• CPC

  • C01B17/84 - Chamber process

• US Classifications

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