Underwater drawing tablet

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

Reexamination Certificate

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Reexamination Certificate

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10842385

ABSTRACT:
An underwater writing and drawing tablet that stretches a length of waterproof (plastic) vellum between two rollers over a flat surface thereby enabling the user to easily draw or write on said vellum and permanently save the drawing and writing.

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patent: 6161740 (2000-12-01), Allen
patent: 2004/0191753 (2004-09-01), Meyerrose
patent: 2004/0197758 (2004-10-01), Langford

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