Artificial bones for medical instruction purposes; Artificial limbs for medical instruction purposes; Assistive listening device not for medical purposes; Ear plugs for divers; Educational apparatus, namely, manipulative blocks used as teaching aids for the visualization of math concepts; Medical diagnostic simulators for use as teaching aids for otolaryngoscopy; Medical teaching mannequins; Nose clips for divers and swimmers; Nose clips for swimming; Nose pads for eyewear; Protective eyewear...