US PATENT SUBCLASS 312 / 230
WITH ERASABLE SURFACE (E.G., BLACKBOARD)


Current as of: June, 1999
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312 /   HD   SUPPORTS: CABINET STRUCTURE

230WITH ERASABLE SURFACE (E.G., BLACKBOARD)


DEFINITION

Classification: 312/230

(under the class definition) Structures having an erasable surface, (e.g., a blackboard) as a part of the combination.

SEE OR SEARCH CLASS

434, Education and Demonstration,

408+, for such subject matter without cabinet features.