.~ Markable or erasable game board or piece (e.g., magic slate)
DEFINITION
Classification: 273/240
Markable or erasable game board or piece (e.g., magic slate):
(under subclass 236) Game structure in which either the surface having a pattern or confining region, or at least one of the contest elements are adapted and intended to have indicia permanently or erasably marked thereon by the participants using such means as a pen, pencil, crayon, chalk, grease pencil, ink stamp, stylus, etc.