2780819

Information

• Patent Grant
• 2780819

• References
• Source

• Patent Number

  2,780,819

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1957
  67 years ago

• CPC

  • A47L11/4041 - Roll shaped surface treating tools
  • A47L11/204 - having combined drive for brushes and for vacuum cleaning
  • 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