6 Metal hydrogen storage containers; metal hydrogen storage containers for use with hydrogen generators
7 Electric hydrogen generators; hydrogen compressors; power operated industrial hydrogen dispensers
9 Electrochemical fuel cells; metered and automatic chemical dispensers; electrochemical fuel cells for use with hydrogen generators; metered and automatic chemical dispensers for use with hydrogen generators
11 Combinations of hydrogen generators, compressors, storage containers and dispensers sold as a unit; hydrogen generators that use water as a feed stock
20 Non-metal hydrogen storage containers; non-metal hydrogen storage containers for use with hydrogen generators
37 Installation and maintenance of hydrogen generators, hydrogen compressors, hydrogen storage containers, hydrogen dispensers, fuel cells, and combinations of thereof