(under subclass 10) Device in which the means to sense the path or position of the material is particularly recited in the claim, and is not otherwise classifiable.
(1) Note. The patents in this subclass are for devices which are detector subcombinations clearly disclosed as being used with means to control movement of the material within the class definition, not provided for in other classes. For example, a photocell detector not effecting material correcting means will be placed as an original in Class 250, Radiant Energy, especially since subclass 219, Web, strand or record in optical path (in Class 250) is specifically provided to take such a subcombination.
(2) Note. See Lines With Other Classes and Within This Class, Relationship to Classes Which Include Subcombinations Utilizable in Advancing Indeterminate Length* Material of this publication for other classes including material sensing material.
