Educational apparatus, namely, blocks used as teaching aids for university-level physics and engineering education; Educational apparatus, namely, blocks used as teaching aids for advanced physics instruction; Educational apparatus, namely, blocks used as teaching aids for generating and studying plasma for educational and research purposesinstrumentation; Particle accelerators; Nuclear medical research imaging apparatus

Protective adhesive pads made of plastic, in various sizes and shapes, and specially adapted for power-operated grinding wheels for optical lens grinding used to prevent movement by holding ophthalmic lenses in place during the lens edging process