2904818

Information

• Patent Grant
• 2904818

• References
• Source

• Patent Number

  2,904,818

• Date Filed

  Not available

• Date Issued

  Tuesday, September 22, 1959
  65 years ago

• CPC

  • A47L9/0422 - driven by the rotation of the supporting wheels on which the nozzle travels over the floor
  • A47L11/204 - having combined drive for brushes and for vacuum cleaning
  • A47L11/40 - Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups
  • A47L11/4013 - Contaminants collecting devices
  • A47L11/4041 - Roll shaped surface treating tools
  • A47L11/4044 - Vacuuming or pick-up tools; Squeegees
  • A47L11/4069 - Driving or transmission means for the cleaning tools
  • A47L11/4094 - Accessories to be used in combination with conventional vacuum-cleaning devices

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning