DAMON

MANIPULATIVE TEACHING INSTRUMENTS AND APPARATUS AND PARTS THEREFOR

INSTRUCTIONAL AND TEACHING MODELS (OTHER THAN APPARATUS) AND PARTS THEREFOR; AND INSTRUCTIONAL AND TEACHING MATERIALS (OTHER THAN APPARATUS) SUCH AS CHARTS, PUNCHED AND UNPUNCHED INDEX AND FILE CARDS, CONSTRUCTION PAPER, INK PADS AND STAMPS, ART BRUSHES, AND THE LIKE