(under subclass 58) Processes which result in an element for use as a part of an electrochemical generator in which the chemical energy from the reaction of oxygen and a fuel is converted directly into electricity.
SEE OR SEARCH CLASS
29, Metal Working,
2, for a process or apparatus for making a battery grid, subclasses 623.1+ for a process of making an electric battery cell and subclass 763 for apparatus to assemble or disassemblem an electric cell or battery.
136, Batteries: Thermoelectric and Photoelectric, for a fuel cell or and electrode.
