1640249

Information

• Patent Grant
• 1640249

• References
• Source

• Patent Number

  1,640,249

• Date Filed

  Not available

• Date Issued

  Tuesday, August 23, 1927
  98 years ago

• CPC

  • B01D23/24 - Regeneration of the filter material in the filter
  • B01D23/10 - with loose filter material
  • B01D23/14 - carbon filters
  • B01D35/153 - Anti-leakage or anti-return valves

• US Classifications

  • 210 - Liquid purification or separation