4. Bleaching and dyeing; fluid treatment and chemical modification
  5. Treatment of hides, skins, feathers and animal tissues
  6. Tanning

Lung-Pao Chen

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Airflow control structure for pneumatic tools

Tool driving or impacting – Passage in manipulating handle for drive motor motive fluid – Motive fluid control valve in handle passage
Reexamination Certificate

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Bolt brush

Brushing – scrubbing – and general cleaning – Implements – Brush or broom
Reexamination Certificate

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Clockwise or counterclockwise rotation control device of a...

Tool driving or impacting – Impacting devices – With means for rotating tool
Reexamination Certificate

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Coupling structure for grinding members

Abrading – Frame or mount – Rotary tool supporter
Reexamination Certificate

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Erasing wheel

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Eraser
Design Patent

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Profile ID: LFUS-PAI-P-2373202

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