(under subclass 154) Subject matter wherein the cover is for an energy conversion mechanism, (e.g., electrical to mechanical as an electric motor, mechanical to electrical as a generator, or heat to mechanical as a steam or gasoline engine).
SEE OR SEARCH THIS CLASS, SUBCLASS:
901, for a cross-reference art collection of insulating covers.
SEE OR SEARCH CLASS
206, Special Receptacle or Package,
319, for a container for, or a package containing, an engine or motor.
