Collapsible educational chart

Education and demonstration – Means for demonstrating apparatus – product – or surface... – Display panel – chart – or graph

Reexamination Certificate

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Details

C434S262000, C434S365000, C040S124130, C040S124040, C040S904000, C283S056000

Reexamination Certificate

active

06890183

ABSTRACT:
Disclosed herein is a collapsible, educational chart that also serves as a promotional item.

REFERENCES:
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patent: 5975390 (1999-11-01), Saroli
patent: 6123361 (2000-09-01), Cohen
patent: 6158157 (2000-12-01), Hiscock et al.
patent: 6438877 (2002-08-01), Ruiz

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