Calculators; Carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, cell phones, MP3 players, personal digital assistants, etc.; Electric batteries; Food timers; Laboratory equipment and supplies, namely, incubators; Lithium ion batteries; Off-grid power and deep cycle battery storage systems comprised of batteries, charge controllers an...