(under subclass 501) Subject matter wherein the contact member (a) gauges an object that has an axis to determine whether the axis is a straight line, (b) gauges an object to determine if the surface has every point in the same flat plane, or (c) gauges an object at certain points to determine that the points are at the proper location.
SEE OR SEARCH THIS CLASS, SUBCLASS:
180+, for positioning a plurality of objects relative to each other.
286, for a straightline light ray alignment device.
290, for a straightline light ray level device.
412, for a straightedge type shift alignment.
SEE OR SEARCH CLASS
73, Measuring and Testing, 104+, for surface testing.
356, Optics: Measuring and Testing,
371, for flatness testing, subclass 153 for alignment of axes nominally coaxial, and subclass 399 for alignment in a lateral direct.
