Combined with diverse art tool, instrument or machine:
(under subclass 642) Subject matter wherein the lens is claimed in combination with a tool, instrument or machine, each of which is nonoptical in nature, and which combination is not classifiable with the tool, instrument, or machine.
(1) Note. For classification in this subclass, the tool, instrument, or machine must be at least nominally claimed. However, if the lens constitutes a perfecting feature of the tool, instrument or machine, the claiming of significant structure of the tool, instrument or machine is sufficient to classify the combination with the art to which the tool, instruments, or machines relates. Examples of tools, instruments, or machines combined with lenses and classified here are rulers, compasses, dividers, tweezers, thermometers, pencils, and sewing machines. Where the lens is claimed in combination with a support which is in turn disclosed as being attachable to an unclaimed tool, instrument, or machine, classification is with the lens and support in subclasses 811+ below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
440+, for lenses combined with structure including a scale or indicator.
448, 581, 726+, 737, and 738, for lenses combined with other optical structure such as prisms, mirrors, and light valves.
798+, for lenses combined with viewed object illuminating structure.
811, for lenses with supports. See also (1) Note above.
