Scientific, electric and electronic apparatus and instruments, namely, electrolyzers, electrochemical cells, and batteries; eletrolyzers containing electrochemical cells for producing hydrogen gas; electrolyzers for use in electrochemical cells; fuel cells; cell stacks for use in the manufacture of electrolyzers; electronic equipment, namely, membranes in the nature of anion exchange membranes and proton exchange membranes used in electrochemical cells; hydrogen power storage systems comprise...