Education and demonstration – Means for demonstrating apparatus – product – or surface... – Chalkboard or equivalent means having easily erasable surface
Reexamination Certificate
2007-09-04
2007-09-04
Kim, Eugene (Department: 3711)
Education and demonstration
Means for demonstrating apparatus, product, or surface...
Chalkboard or equivalent means having easily erasable surface
Reexamination Certificate
active
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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Collins Dolores R.
Cooper & Dunham
Kim Eugene
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