2972769

Information

• Patent Grant
• 2972769

• References
• Source

• Patent Number

  2,972,769

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1961
  64 years ago

• CPC

  • A47L11/4033 - Means for cleaning filters
  • A47L11/305 - the tools being disc brushes
  • A47L11/4022 - with means for recycling the dirty liquid
  • A47L11/4027 - Filtering or separating contaminants or debris

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning
  • 096 - Gas separation: apparatus