4. Washing, cleaning, or drying machine
  5. Washing, cleaning, or drying machine
  6. Surface treatment, e.g., floor, street, etc.

Cheng Luo

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Particle analyzer based on sheath flow impedance method

Electricity: measuring and testing – Determining nonelectric properties by measuring electric... – Particle counting
Reexamination Certificate

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Vacuum cleaner

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-3152316

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