3813721

Information

• Patent Grant
• 3813721

• References
• Source

• Patent Number

  3,813,721

• Date Filed

  Not available

• Date Issued

  Tuesday, June 4, 1974
  50 years ago

• CPC

  • A47L11/4038 - Disk shaped surface treating tools
  • A47L11/38 - Machines, specially adapted for cleaning walls, ceilings, roofs, or the like
  • A47L11/4069 - Driving or transmission means for the cleaning tools
  • A47L11/4075 - Handles; levers
  • A47L11/4088 - Supply pumps; Spraying devices; Supply conduits
  • A47L13/23 - connectable to the water mains

• US Classifications

  • 015 - Brushing, scrubbing, and general cleaning