4. Brushing, scrubbing, and general cleaning
  5. Machines
  6. With air blast or suction

William H. Frederick

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Filter bag mounting assembly for a vacuum cleaner

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent

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Home automation system

Data processing: generic control systems or specific application – Generic control system – apparatus or process – Having operator control interface
Reexamination Certificate

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Nozzle lift and adjustment mechanism for an upright vacuum clean

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent

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Sweeper

Washing – cleaning – or drying machine – Washing – cleaning – or drying machine – Surface treatment – e.g. – floor – street – etc.
Design Patent

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Sweeper

Washing – cleaning – or drying machine – Washing – cleaning – or drying machine – Surface treatment – e.g. – floor – street – etc.
Design Patent

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Profile ID: LFUS-PAI-P-618782

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