4. Office supplies; artists and teachers materials
  5. Equipment for writing, drawing, or for fine arts
  6. Eraser

Chen-Lang Fan

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Blackboard eraser and dust collecter

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

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Wireless blackboard eraser and dust collector

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

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Profile ID: LFUS-PAI-P-2817141

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