4. Education and demonstration
  5. Means for demonstrating apparatus, product, or surface...
  6. Chalkboard or equivalent means having easily erasable surface

Shan-Ming Chen

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Handle of a stationery roll wheel

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

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Integrally-made ultrathin circular blade of cutting tool

Cutlery – Cutting tools – Plural blade
Reexamination Certificate

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Modular educational implement structure

Education and demonstration – Means for demonstrating apparatus – product – or surface... – Chalkboard or equivalent means having easily erasable surface
Reexamination Certificate

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rotary knife

Cutlery – Cutting tools – With guard and/or guide
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2595176

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