Lines with other classes and within this classCOMBINATIONS OF OTHER APPARATUS WHICH INCLUDE APPARATUS OF THIS CLASS A. Subject matter where the time measuring system or device is controlled by a disparate device is classified here only if not elsewhere classifiable. B. Noninteractive combinations of disparate devices and time measuring systems or devices are classifiable here if the time measuring art is more than nominally claimed, or not elsewhere classifiable. C. This class does not include the following subject matter: (1) Excepting the apparatus combinations as provided for in the Class Definition, B, and in Lines With Other Classes and Within This Class, paragraphs A and B above, systems or devices or portions thereof whose operation is affected (i.e., controlled) by a time measuring mechanism. (2) Systems or devices which perform computations involving time or nontime parameters with an output time signal or indication (e.g., average wait time, estimated time of arrival, etc.), such subject matter can be found elsewhere. (See References to Other Classes, below.) (3) Systems or devices where the time indicating means is a tracing, marking, or the like made by a recording instrument is excluded, such subject matter being proper elsewhere. (See References to Other Classes, below.) (4) Sundials and like instruments which measure time by the position of a shadow are classified elsewhere. (See References to Other Classes, below.) | 
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