(under subclass 772) Subject matter to which has been added a subcombination or assembly which is recognized as subject matter of some other class or part of this class.
(1) Note. Included here are other geometrical instruments
such as means for determining angles or grades.
SEE OR SEARCH CLASS
346, Recorders, appropriate subclass for rolling contact distance measuring devices combined with means for recording irregularities in surfaces by shock or vibration and appropriate subclass for devices for measuring and recording distance and functions not included in this class.
