1917717

Information

• Patent Grant
• 1917717

• References
• Source

• Patent Number

  1,917,717

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1933
  91 years ago

• CPC

  • C01B17/86 - Tower process

• US Classifications

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