2639973

Information

• Patent Grant
• 2639973

• References
• Source

• Patent Number

  2,639,973

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1953
  71 years ago

• CPC

  • B01J8/189 - moving downwards in a zig-zag manner
  • B01J8/30 - the edge of a lower bed projecting beyond the edge of the superjacent bed

• US Classifications

  • 034 - Drying and gas or vapor contact with solids
  • 208 - Mineral oils: processes and products
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing