3398250

Information

• Patent Grant
• 3398250

• References
• Source

• Patent Number

  3,398,250

• Date Filed

  Not available

• Date Issued

  Tuesday, August 20, 1968
  56 years ago

• CPC

  • A47L11/4069 - Driving or transmission means for the cleaning tools
  • A47L7/02 - with driven tools for special purposes
  • A47L9/2842 - Suction motors or blowers
  • A47L9/2857 - User input or output elements for control
  • A47L9/2889 - Safety or protection devices or systems
  • A47L11/30 - by suction
  • A47L11/4008 - Arrangements of switches, indicators or the like
  • A47L11/4044 - Vacuuming or pick-up tools; Squeegees
  • H01H3/04 - Levers
  • H01H9/063 - enclosing a reversing switch
  • H01H15/20 - with means for introducing a predetermined time delay
  • Y10T74/20924 - Controller checks

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 015 - Brushing, scrubbing, and general cleaning
  • 074 - Machine element or mechanism