MAIHUN

Depth gauges; Educational apparatus, namely, manipulative blocks used as teaching aids for the visualization of math concepts; Electric navigational instruments; Electronic devices for measuring electric current; Graduated glassware; Laboratory apparatus and instruments for the exchange of substances and heat; Optical glasses; Tool measuring instruments; Weighing apparatus and instruments; Downloadable computer software to enhance the audio-visual capabilities of multimedia applications, namely, for the integration of text, audio, graphics, still images, and moving pictures